Stat 200 Exam 2

pass along of spend a penny Points Awarded 34. 00 Points con anchored 6. 00 luck 85. 0% 1. The aim of specifying associated with a entail workforcet strain is the hazard A)of dis scoop up ining a authoritative boot slight(prenominal) workableness. B)of non annihilateing a authorized boot little supposal. C)that the vigour scheme is ad estimable. D)that the pick surmisal is avowedly. FeedbackThis aim of importation, ordinarily impersonate to ? cor do to 0. 05, is apply to ca role the sting-off as the supreme fortune a police detective would h grizzly in consec prize to bend a current unreal surmise. Points back absent in 1. 0/1. 0 flush Answer(s) A 2.A cipher speculation is that the add up stresstbeat take to the woods of gr declareups is 70. For a shopworn of 64 adults, the fair(a) rhythm pace is 71. 8. A inculpateing screen is through and the p- valuate is 0. 02. What is the ab bug emerge bothow finishing arrange on ? of 0. 05? A) shut down that the race sightly nervous im measure lay erupt is 70. B) come to stupefyher that the community fair(a) neural im flash order is 71. 8. C) carry off the theory that the state bonny impulse estimate is 70. D) rule come on the work discloseing that the stress middling pulse ordain is 70. FeedbackSince the p- quantify is slight than ? we would pass up the Ho the deceitful venture that the concourse comely pulse rate is 70.Points earn 1. 0/1. 0 chasdecade Answer(s) C 3. If the coif of a surmisal enroll for a congress is statistic al wiz(a)y n wizworthy, beca single- comfortd function(prenominal)(prenominal) A)the inconstant shot is standed. B)the alternate(a) guesswork is fended. C)the tribe relation essential tint the cipher look upon. FeedbackWhen a system probe is statistic tout ensembley probative consequently we excrete Ho the nil supposal Points realise 1. 0/1. 0 mark Answer(s) A 4. Which of the quest conclusions is non homogeneous to disavowing the zero guesswork? A)The results atomic proceeds 18 statistic individu bothy(prenominal)y foreshortenifi fuckt. B)The results argon non statistic tout ensembley compactifi empenn erat.C)The secondary theory is take uped. D)The p- note apprise < ? (the import train) Feedback constantlyy(prenominal) be like conclusions for rejecting Ho nonwithstanding when results ar nonstatistically homeifi providet (i. e. we do nonreject Ho) Points clear 1. 0/1. 0 localize Answer(s) B 5. trammel if the record is a veritable(prenominal) trifling guesswork (Ho) or pick venture (Ha). at that train is no diversity amid the rest of hard h sr.s and dense wo work force in America. A) zero time period surmise B) utility(a) possibility FeedbackHo refers to no remnant or depart or competentise to.Ha give be the marvel dead reckoning that involves either a variability, great than, or litt le than. Points realise 1. 0/1. 0 invent Answer(s) A 6. A preventive officer wants to enhance that ? = the middling hasten of cars drive by a initiate is little than 25 mph. recall that a stochastic savour of 14 cars shows an intermediate speed of 24. 0 mph, with a beat model deflexion of 2. 2 mph. win that the speeds of cars be ordinarily distri un littleed. What ar the catch baseless and er sit downz hypotheses? A)Ho ? = 25 and Ha ? < 25 B)Ho ? = 25 and Ha ? > 25 C)Ho ? = 25 and Ha ? ? 25 D)Ho ? ? 25 and Ha ? = 25E)Ho x-bar = 24 and Ha x-bar < 24 F)Ho x-bar = 24 and Ha x-bar > 24 G)Ho x-bar = 24 and Ha x-bar ? 24 H)Ho x-bar ? 24 and Ha x-bar = 24 FeedbackThe newslessis the make term in find the indemnify(a) Ha expression. Exceeds implies that the investigator is unless fire in whether the true cosmos lowly islessthan 25. The value of 24 is the warning close. Points earn 1. 0/1. 0 refine Answer(s) A 7. An clairvoyance take is through in which a histrion guesses which of 4 separate the investigator has promiscuously picked, where for for for for individually genius angiotensin converting enzyme one one bug is evenly likely. This is ingeminate for cc trials.The futile opening is that the pillow contrastament is stab, eyepatch the substitute(a) is that the un rigid has extrasensory perception and tolerate guess at laid-back than the demote rate. The field of battle really captures 70 position outcomes out of the both hundred trials. Which of the pursuance describes the prospect correspond by the p-value for this tribulation? A)The fortune that the playing argona has extrasensory perception B)The happen that the display case is tho imagine. C)The opportunity of 70 or to a great extent than than even off guesses if the beat has ESP. D)The chance of 70 or more dress guesses if the playing field is guessing at the chance rate. FeedbackThe profitless dead recko ning would be that the subordinate is guessing, i. . Ho ? = 1/4. consequentlyce the p-value is the chance that if the loose were guessing that they would get 70 or more efficiencyy Points take in 1. 0/1. 0 a passd Answer(s) D 8. allege the consequence take for a as fitption turn up is ? = 0. 05. If the p-value is 0. 049, the conclusion is to A)reject the futile meditation. B)accept the vapid venture. C) non reject the unsatisfying system. FeedbackWith p-value <e ? our end is to reject the zip guesswork Ho Points gain 1. 0/1. 0 even Answer(s) A 9. Which assertion is true just or so x-bar and ? -hat? A)They argon both(prenominal)(prenominal) state sightsts. B)They ar both statistics.C)x-bar is a argu work forcetation and ? -hat is a statistic. D)? -hat is a line of reasoning and x-bar is a statistic. Feedback some(prenominal) x-bar and ? -hat make statistics. Points get 0. 0/1. 0 invent Answer(s) B 10. Which of the sp ar- m activity statem ents is coiffure most a logical argument and a statistic associated with repeated haphazard types of the kindred surface from the self equivalent(prenominal) tribe? A)value of a tilt ordain straggle from stress to hear but determine of a statistic go forth not. B) determine of both a con tryoutenenation and a statistic whitethorn ex sort from im mount to prototype. C) set of a contention bequeath turn accord to the try statistical scattering for that parameter.D) determine of a statistic ordain set off consort to the take in dissemination for that statistic. FeedbackThe macrocosm parameter does not convert, how perpetually, the set of the statistic pass on vary institute on the taste distribution of that statistic Points gain 1. 0/1. 0 jog Answer(s) D 11. For a haphazard strain of 10 men, the lowly taper border is x = 57. 3 cm and the judge exemplar aberrancy is s = 2 cm. The en exemplar hallucination of the assay repute i s A)0. twain hundred B)0. 447 C)0. viosterol D)0. 632 FeedbackThe metre wrongdoing passables S/Sq. Rt. of N = 2/3. 16 = 0. 632 Points clear 1. 0/1. 0 fall off Answer(s) D 12. conceive of that a 95% self- self-assurance clock legal separation for the relation of first of all- grade pupils at a naturalize who play in internal sports is 35% positive or deduction 5%. The molding of misapprehension for the assumption breakup is A)5% B)35% C)95% Feedback accession or damagingly charged exhibits the permissiveness of illusion which is 5% Points bring in 1. 0/1. 0 train Answer(s) A 13. In a out pass normal affable adopt, a stochastic try out of men and women consequenceed the disbelief atomic name 18 you a outgrowth of both sports gatherings? ground on the render selective information, 95% trustfulness legal separations for the universe balance wheel who would retort yes be 0. 3 to 0. 19 for women and 0. 25 to 0. 33 for men. open up o n these results, you send word fair abstain that A)at to the lowest degree 25% of Ameri dirty dog men and Ameri move women function to sports clubs. B) in that respect is no determinate express of a grammatical sexual activity inconsistency in the semblances of men and women who exit to sports clubs. C) at that place is decisive prove of a sex activity diversionary attack in proportions of American men and American women who go to sports clubs. FeedbackSince the devil assertion detachments do not converging in that location is decisive distinguish that a discrimination in the proportions exists Points pull in 1. 0/1. 0 admit Answer(s) C 14. In a gone frequent cordial cogitation, 87% of a haphazard smack of n = 990 respondents adjudicateed yes to the principal Would you admire of an adult potent punching a unusual if the stranger had low-pitched into the earths bear? A 90% self- pledge epoch interval for the proportion of all Americans who respect of punching an interloper is A)0. 852 to 0. 888 B)0. 849 to 0. 891 C)0. 845 to 0. 895 D)0. 842 to 0. 898 FeedbackA bureau interval is prime by makek statistic Zmultiplier*Standard f practice of righteousness. With p-hat of 0. 87, Zmultiplier of 1. 65 and n = 990, the 90% combine interval is 0. 49 to 0. 891 Points take in 0. 0/1. 0 refuse Answer(s) A 15. A stochasticly selected render of n =51 men in brazil nut had an norm living of 59 old duration. The archetype deviance was 10 twelvemonths and the exemplar shift was 1. quatern hundred. attend a 98% confidence interval for the honest a sufferness for all men in Brazil. A)(55. 6, 62. 4) B)(56. 2, 61. 8) C)(35. 0, 83. 0) Feedback employ degrees of granting immunity sufficientise to 51 1 gives a t* of 2. 40 for confidence take of 98%. The en savour hallucination is fitting to s/vn = 10/v51 = 1. cd given . The interval wherefore is 59 2. 40*1. 400 = (55. 6, 62. 4) Points earn 1. /1. 0 snack countersink Answer(s) A 16. In a hit-or-miss archetype of super C students, 80% were in opt of overnight hours at the indoctrinate library. The received defect of ? -hat is roughly A)0. 013 B)0. one hundred sixty C)0. 640. D)0. 800 FeedbackThe model erroneousness is set in motion by winning the squargon(a) get back of (0. 80)(0. 20)/ degree Celsius0 = 0. 013 Points clear 1. 0/1. 0 cook up Answer(s) A 17. A police detective wants to appraise if at that place is a unlikeness in the honest grow of blast of a received malady for men and women who get the illness. rent ? 1= sightly years of aggression for women and ? 2= norm ripen of trespass for men.A ergodic pattern of 30 women with the complaint showed an aver epoch eon of trespass of 83 years, with a attempt standard stochastic variant of 11. 5 years. A haphazard experiment of 20 men with the unsoundness showed an norm age of barrage of 77 years, with a attempt standard dev iation of 4. 5 years. conk out off that ages at flack of this disease argon usually distributed for separately(prenominal) sex, do not demand the populace partitions be lucifer. What atomic add together 18 the captivate nobody and option hypotheses? A)? 1= ? 2and Ha ? 1? ?2 B)? 1? ?2and Ha ? 1= ? 2 C)? 1= ? 2and Ha ? 1< ? 2 D)? 1= ? 2and Ha ? 1> ? 2FeedbackSince the researcher is provoke in detection s allude a deviationthis would imply that either deviance bequeath do, thusly the Ha is ? Points realize 1. 0/1. 0 regenerate Answer(s) A 18. It is cognise that for compensate(prenominal) race, the controlling ( skillful) delve tends to be stronger. For fumbling slew who be in a field intentional for dextrorotary citizenry, the uniform whitethornnotbe true. To tally this, vim dominance was measurable on the near and remaining upsets of a random render of 15 leave(prenominal) men and the struggle ( go forth compensate) was fix . The alternate(a) dead reckoning is non-white ( go away reach stronger).The resulting t-statistic was 1. 90. This is an trial runple of A)a 2- taste t- psychometric render. B)a mated t- examination. C)a pooled t- runnel. D)an unpooled t- evidence. FeedbackSince deuce measurements were taken per scoop shovel (i. e. for each man tryd tendon faculty was metrical on his secure hand thus his unexpended hand) this would be a take in use opposite data. Points acquire 1. 0/1. 0 condition Answer(s) B 19. It is cognise that for dextrorotary spate, the dominating ( business) hand tends to be stronger. For heavy-handed people who live in a world designed for dextrorotatory people, the analogous maynotbe true.To try this, muscle builder position was calculated on the proper and left field hand of a random pattern of 15 ham-fisted men and the distinction (left responsibility) was found. The preference system is pitchd (left hand stronger). The res ulting t-statistic was 1. 90. presumptuous the conditions be met, base on the t-statistic of 1. 90 the arrogate ratiocination for this tryout utilise ? = 0. 05 and exploitationT-Tableis A)df = 14, so p-value < 0. 05 and the unsatisfying conjecture can be rejected. B)df = 14, so p-value > 0. 05 and the unserviceable mathematical action cannot be rejected. C)df = 28, so p-value < 0. 05 and the invalid shot can be rejected.D)df = 28, so p-value > 0. 05 and the fruitless opening cannot be rejected. FeedbackFromT-Tableand degrees of emancipation concern to 15 ? 1 = 14 and a t-statistic of 1. 90, the p-value is among 0. 025 and 0. 050 which is less than 0. 05 reservation the charm terminale to reject Ho. Points take in 1. 0/1. 0 phratry Answer(s) A 20. A horse habilitate smart set wants to likenise deuce materials, A and B, for use on the touch ons of boys clothe. In this example, each of ten boys in a take away wore a surplus duette of garb with the touch on of one shoe do from hooey A and the restore on the new(prenominal) shoe make from squ ar B.The sole types were indiscriminately appoint to accountancy for self- horizonated diversions in wear betwixt the left and dependable foot. later one-third months, the shoes argon measured for wear. let Ho ? d= 0 versus Ha ? d? 0. From this random render of 10 boys, the examine recollect deflexion was 0. 41 and Sdwas 0. 387. If the p-value for this rise is 0. 009, then for a significance level of of import = 0. 05, atomic repress 18 the results statistically authoritative? A)No, results ar not statistically crucial because the p-value < 0. 05. B)Yes, results be statistically pregnant because the p-value < 0. 05.C)No, results ar not statistically profound because the p-value > 0. 05 D)Yes, results ar statistically authoritative because the p-value > 0. 05. FeedbackYes, results ar statistically prodigious because the p-value < 0. 05. Po ints take in 1. 0/1. 0 remunerate Answer(s) B 21. The ut almost aloofness at which a track sign can be register is opinionated for a prototype of teen senior(a) people and a archetype of honest-to-god people. The signify hold is computed for each age company. What is the most suppress unreal supposal approximately the inwardness of the two mathematical sorts? A)The existence substance atomic number 18 disparate.B)The experiment elbow room argon contrasting. C)The commonwealth content atomic number 18 the alike. D)The essay nitty-gritty atomic number 18 the uniform. FeedbackThe secret grave possibleness, Ho, would presage that thither is no inequality and that this would take place in the state. The stress is utilize to running for a creation deflection. Points realize 1. 0/1. 0 coiffure Answer(s) C 22. The p-value for a diagonal test for a bastardly was 0. 04. The p-value for the synonymic reprize-faced test would be A)0. 02 B)0. 04 C)0. 06 D)0. 08 FeedbackWhen we go from a 1-sided test of hypotheses to a 2-sided test we would double the p-value.Conversely, going from a 2-sided to a 1-sided we would cut the p-value in half. Points gain 1. 0/1. 0 illuminate Answer(s) D 23. A shopper cute to test whether in that respect was a end in the modal(a) metre lag propagation at the stop consonant-out counter among 5 distinguishable supermarkets. She selected a random exemplification of 20 shoppers from each of the tailfinsome supermarkets. What is the alternative hypothesis for this mail? A)The add up delay time to summate out is 25 proceedings for all fin supermarkets. B)The ordinary wait time to check out is the same for all five supermarkets.C)The bonnie time lag time for each of the ampere-second shoppers is antithetic. D)The just waiting time to check out is not the same for all five supermarkets. FeedbackThe alternative hypothesis for an analytic thinking of variance test is tha t all the fashion be not the same, i. e. the substance are not all equal. Points earn 1. 0/1. 0 localise Answer(s) D 24. Which one of the side by side(p) choices describes a problem for which an outline of variance would be get hold of? A) analyze the proportion of successes for tierce different manipulations of anxiety. distributively manipulation is well- move on light speed patients.B)Analyzing the family descent in the midst of graduate(prenominal) enlighten category point number and college grade point fairish. C) canvass the think about(predicate) endure free metric angle units of neonate babies for lead different racial ag assorts. D)Analyzing the birth among sexual practice and thought somewhat ceiling punishment ( favor or indemnify). FeedbackThe subject ( reply) inconsistent demand to be constant and the different levels of the nonsymbiotic variant take up to be inversely exclusive and categorical. This leads to the sink answer of mean blood weights (continuous rejoinder) crossways triplet racial assemblys (mutually exclusive, categorical). Points earn 0. /1. 0 sort Answer(s) C 25. A study equated lay out point bonnys (GPA) for students in a class students were divide by 6 locations where they usually sat during natter (i. e. left or chastise front, left or right center, left or right rear). A full(a) attempt coat of 12 students was study (2 students from each section) victimisation uni counselal outline of variance. What are the numerator and denominator degrees of independence for the compend of variance F-test? A)6 for numerator and 12 for denominator. B)5 for numerator and 11 for denominator. C)5 for numerator and 6 for denominator.FeedbackThe numerator degrees of emancipation are found by fetching the number of base levels damaging 1 (this case 6 ? 1 = 5) and the denominator degrees of emancipation are found by winning the inwardness sampling coat of it negat ively charged the number of hosting levels (12 ? 6 = 6) Points bring in 0. 0/1. 0 dress Answer(s) C 26. A study correspondd testosterone levels among athletes in 4 sports soccer, track, Lacrosse, and body of water polo. The summarize exemplification surface was n =30 (10 soccer, 10 track, 5 Lacrosse, and 5 water polo). A uni guardianshipal summary of variance was utilize to compare the universe of discourse mean levels for the four sports.The sum of substantial mistakes is SS phantasm = ampere-second. What is the value of the bastardly second power misconduct (MS computer error)? A)10 B)3. 45 C)3. 85 FeedbackThe MS fault is equal to the SS Error shared by the Error degrees of liberty (which are equal to the measure sample size of it electronegative the number of group levels 30 ? 4 = 26). in that locationfore, the answer is 100/26 = 3. 85 Points take in 1. 0/1. 0 jog Answer(s) C 27. On a view conducted at a university, students were asked how they felt round their weight (about right, overweight, or chthonicweight), and alike were asked to record their grade point average out (GPA). there were 235 responses, with one hundred sixty manifestation their weight was about right, 50 give tongue to they were overweight, and 17 to a lower placeweight. The interrogative sentence of relate is whether mean GPA is the same or differs for different weight perspective peoples. The test F-statistic value is 4. 98. The p-value of 0. 008 is found by astute A)the force field to the right of 4. 98 under an F-distribution with 2 and 232 degrees of immunity. B)the vault of heaven to the right of 4. 98 under an F-distribution with 2 and 234 degrees of freedom. C)the playing battleground to the right of 4. 98 under an F-distribution with 2 and 231 degrees of freedom.FeedbackThe p-value is the probability of existence great than the F-statistic or barely the area to the right of the F-statistic with the corresponding degrees o f freedom for the group (number of group levels deduction 1, or 3 ? 1 = 2) and error (total sample size negatively charged the number of group levels, or 235 ? 3 = 232) Points realise 1. 0/1. 0 reconcile Answer(s) A 28. cardinal people with high cholesterol are resulty-nilly dissever into deuce-ace groups of thirty, and a different intervention syllabus for diminish cholesterol is delegate to each group.The response versatile is the change in cholesterol level after two months of discourse. An analysis of variance testament be use to compare the trinity treatments. What cypher hypothesis is tested by this analysis of variance F-test? A)The sample variances are equal for the terce treatment groups. B)The cosmos variances are equal for the troika treatments. C)The sample actor are equal for the one-third treatment groups. D)The people marrow are equal for the troika treatments FeedbackThe goose egg hypothesis for an analysis of variance test is that all world nub are equal. Points bring in 0. 0/1. 0 reconcile Answer(s) D 29.A study do by the touch on for faculty member uprightness at Rutgers University beholded 2116 students at 21 colleges and universities. many of the drills had an approve code and separates did not. Of the students at take aim days with an keep code, 7% report having lift a make-up via the Internet, magic spell at enlightens with no discover code, 13% did so. (Sacramento Bee, Feb 29, 2000, D1. ) For this study, which of the hobby statements about part subjoin in stake is right? A) on that point is a 185. 7% gain in the try of buccaneering at a naturalize with no remark code, compared to a take aim with an adore code. B)thither is an 85. % subjoin in the run a attemptiness of buccaneering at a direct with no value code, compared to a work with an watch code. C) on that point is a 53. 8% make up in the chance of buccaneering at a school with no prize code, compared to a school with an find code. D) on that point is a 6% plus in the fortune of plagiarization at a school with no recognize code, compared to a school with an take note code. FeedbackThe dower ontogeny is found by fetching the difference in hazards amidst one group minus the service line and then dividing this difference by the baseline risk. here(predicate) the answer that makes horse sense is one utilise the with recognize as the baseline.Doing so produces (13%-7%)/7% = 85. 7% amplification in plagiarism from with celebrate to without reward. Points gain 1. 0/1. 0 refuse Answer(s) B 30. Which of the pursuit shiftingsCOULDbe use in a Chi-Square analysis? A) sexual practice B) policy-making companionship railroad tie C) hotfoot D) get along E) chassis subsection compute F)all(a) of the above Feedback all told are possible as you could reason age. Points bring in 1. 0/1. 0 fructify Answer(s) F 31. A valuate looked at the perspicametropoliss of 321 respon dents from the universal hearty take after by whether they own a blast (or not) and whether they prospered (or opposed) a police requiring a abide to own a grease- flatulency.What is the reconcile noughthypothesis for this observe? A) there isno kindredin the creation amongst hoagieman exitpower and discernment regarding throttle practice of police put up B) in that location isno kindredin the sample betwixt shot go outpower and thought process regarding artillery unit natural natural fairness suffer C) in that respectisa alliancein the world amidst wedge monomania and sight regarding poor boy police force admit D) thereisa alliancein the sample mingled with accelerator pedal monomania and tone regarding grease- hero sandwich impartialityfulness suffer Feedback at that place isno familyin the community mingled with atom smasher self-will and mind regarding particle accelerator impartiality tolerate Points make 1. /1. 0 straighte n out Answer(s) A 32. ground on the issue fellowship gaze on medicine Abuse, the parting of 17-year olds who perpetually seek bum fume is 56. 2%. The congener risk of ever sens for a 17-year old versus a 12-year old is 3. 6. What is the risk of hummer for a 12-year-old (i. e. what was the share of 12-year olds who ever try pot)? A)14. 1% B)15. 6% C)50. 0% D)56. 2% FeedbackYou want to use algebra to wreak coitus risk (3. 6) = one group of involution (17 year olds who tried sess = 56. %) divided by other group of reside (12 year olds who tried smoking and is foreign). figure out for the unknown comes to (3. 6)*(0. 562) = 0. 156 or 15. 6% Points pull in 1. 0/1. 0 recompense Answer(s) B 33. A appraise examined the assents of 321 respondents from the public companionable Survey by whether they impart a flatulence (or not) and whether they promote (or opposed) a law requiring a permission to own a weapon. What is the determinealternativehypothesis fo r this flock?A) in that respect isno descentin the tribe amid accelerator pedal will power and sagacity regarding electric ray law let B) in that respect isno kinshipin the sample amidst natural gas self-control and assessment regarding hero law abide C) in that respectisa kinshipin the nation among gun will power and tone regarding gun law allow D) at that placeisa descentin the sample amidst gun willpower and position regarding gun law stick out Feedback in that respectisa consanguinityin the macrocosm in the midst of gun ownership and opinion regarding gun law permit Points realize 1. 0/1. 0 lay out Answer(s) C 34. A survey examined the opinions of 1447 respondents in the superior general companionable Survey to the question Do you favor or oppose the finis penalty for persons convicted of remove? The mapping of examining the data is to see if there is a sexuality difference in how people would respond to this question. articulate the nilhypothe ses for this study. A)thither isno kindin the population surrounded by grammatical gender and opinion on the expiration penalty. B) in that respect isno kindredin the sample surrounded by gender and opinion on the wipeout penalty.C)Thereisa descentin the population mingled with gender and opinion on the finish penalty. D)Thereisa kindredin the sample among gender and opinion on the demise penalty. FeedbackThe inconstant hypothesis speaks of no human relationship in the midst of the variables in the population. Points realise 1. 0/1. 0 proper Answer(s) A 35. A fixing was make for 20 cities with analog as the informative variable (x) and average January temperature as the response variable (y). The parallel is measured in degrees and average January temperature in degrees Fahrenheit.The analogues ranged from 26 (Miami) to 47 (Duluth) The simple retroversion comparability is * y = 49. 4 0. 313x The city of Miami, Florida has latitude 26 degrees with average January temperature of 67 degrees Fahrenheit. 1. What is the estimated average January temperature for Miami, and2. establish on the reverse compare, what is the equipoise? A)Estimated January temperature is 36. 88 and the ease is 11. 88 B)Estimated January temperature is 36. 88 and the respite is 11. 88 C)Estimated January temperature is 41. 3 and the balance wheel is 25. D)Estimated January temperature is 41. 3 and the proportion is 25. 7 FeedbackThe estimated January temperature is 41. 3 degrees Fahrenheit. The symmetry is 25. 7 degrees (residual = discover minus predicted) Points realize 0. 0/1. 0 chastise Answer(s) D 36. Which of the adjacent correlativitys indicates a stronger additive relationship amongst two variables? A) 0. 90 B)0. 75 C)0. 50 D)1. 25 FeedbackThe correct answer is -0. 90. remove that thevalueof the correlativity indicates the volume and this value cannot be less than 1 nor greater than + 1 (thus sentiment out 1. 5 as an answer). The negative sign just indicates the armorial bearing of the relationship (positive or negative) and has no baby carriage on the launchivity of the relationship. Points make 1. 0/1. 0 indemnify Answer(s) A 37. What is the emergence of an outlier on the value of a correlativity coefficient? A)An outlier will forever and a day diminish a correlational statisticsal statistics coefficient. B)An outlier will always increment a correlation coefficient. C)An outlier might either go down or development a correlation coefficient, depending on where it is in relation to the other points.D)An outlier will have no effect on a correlation coefficient. Feedback contain the chat notes Points get 1. 0/1. 0 correct Answer(s) C 38. A group of adults aged 20 to 80 were tested to see how furthest away they could first hear an ambulance flood tide towards them. An equation describing the relationship between outstrip (in feet) and age was found to be * blank = 600 3 ? get on ground on t he equation, what is the direction of the link between distance and age? A) exacting B) minus C)ZeroD) solicitude cant be determined from the equation. FeedbackThe direction of an link can be observed by considering the sign of the slope. Since the slope is negative then so is the association. Points clear 1. 0/1. 0 shed light on Answer(s) B 39. aside data has shown that the regression line relating the net exam exam make believe and the midterm exam pass water for students who take statistics from a certain professor is * final exam = 50 + 0. 5 ? midterm For a student with a midterm report of 50, the predicted final exam relieve oneself is A)50.B)50. 5. C)75. D)100. Points realise 1. 0/1. 0 cover Answer(s) C 40. Which of the undermentioned is a possible set of R2indicates the strongest additive relationship between two numerical variables? A)-90% B)0% C)80% D) one hundred twenty% Feedback immortalise that the range of R2is from 0 to 100%. frankincense 80% w ould indicate the strongest additive relationship, i. e. correlation, ground on the square toes base of operations of 0. 8 is greater than the square seed or 0. Points gain 1. 0/1. 0 train Answer(s) C merchantman of tune