Random samples of resting heart rates are taken from two groups. Population 1 exercises regularly, and Population 2 does not. The data from these twosamples is given below:Population 1: 66, 71, 66, 64, 63, 69, 70Population 2: 77, 74, 69, 73, 74, 78, 68, 68Is there evidence, at an a = 0.065 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? Carry out anappropriate hypothesis test, filling in the information requested.A. The value of the standardized test statistic: -4.87322B. The p-value is .00001C. Your decision for the hypothesis test:A. Do Not RejectH₁.B. Do Not RejectHo.C. RejectH₁.OD. RejectHo.

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Answered: Random samples of resting heart rates…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Random samples of resting heart rates are taken from two groups. Population 1 exercises regularly, and Population 2 does not. The data from these two samples is given below: Population 1: 69, 65, 66, 71, 67, 09, 65 Population 2: 78, 76, 69. 77, 70, 60, 69, 68 Is there evidence, at an a- 0.035 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? (Assume that the popuation variances are equal and that the population distributions are normal) Carry out an appropriate hypothesis test, filing in the information requested. A. The value of the test statistic: Note: For the next part, your answer should use interval notation An answer of the form (-00, a) is expressed (-infty, a), an answer of the fom (6, o0) is expressed (b, intty), and an anawer of the form (-oo, a) U (b, ) is expressed (-inity, aLb, infty. Hint: For example, note that a rujection region of 'reject Ho if t> t," can be expressed as "reject Ho ift belongs to the interval…
Primary seat belt laws allow police to stop a motorist for not wearing a seat belt. According to the National Highway Traffic Safety Administration, the percentage of drivers wearing seat belts in the Limpopo province was 68.5% in 2017 and 72% in 2018. Assume that these percentages are based on random samples of 1000 drivers in 2017 and 1050 in 2018. Suppose you must test at 5% level of significance whether the proportion of all drivers in Limpopo province who used seat belts in 2017 is lower than that for 2018. 1 Questions I) Determine the alternative hypothesis to be tested: II) Determine the value of test statistic: III) Determine the p-value for this problem: IV) the conclusion Since Z=-1.734 is greater than Z subscript 0.05 end subscript equals negative 1.645, we then reject the null hypothesis at 5% level of significance and conclude that the proportion of all drivers in Limpopo province who used seat belts in 2017 is lower than that for 2018. b) Since Z=-1.734 is less…
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