E. In the StudentSurvey data, there are 30 male seniors. The table below gives the number of hours perweek that cach said he spent exercising. Rescarchers are interested in the mean number of hours perweek for male seniors spent exercising.Number of boucs males spent exercising a week10 14 7 9 3 5 7 13 13 5 18 12 9 3 76 12 6 8 3 3 5 14 14 7 19 0 2 4 6Use 1-Var Stat with your L1 (List 1) to calculate the statistic and sample standard deviation (s) for thissample.b. Find a 95% confidence interval for the mean number of hours per week male seniors spend exercising-(Check conditions for using a normal distrībution to compute this interval first.)Interpret the results of your confidence interval in the context of the problem.c.d. Doctors have noted that male seniors should spend an average of 6 hours per week exercising. Perform ahypothesis test to determine whether male seniors spend fewer than 6 hours on average exercising eachweek.1. State the null and alternative hypotheses.2. Compute the appropriate test statistic and use Statkey, to identify the resulting p-value.3. At a-05 significance level, what is your conclusion for your test?

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E. In the StudentSurxey data, there are 30 male seniors. The table below gives the number of hours per week that cach said he spent exercising. Rescarchers are interested in the mean number of hours per week for male seniors spent exercising. Number of bauca males spent exercising a week 10 14 7 9 35 7 13 13 5 18 12 9 37 e 12 6 8 3 35 14 14 7 10 0 2 4 a Use 1-Var Stat with your L1 (List 1) to calculate the statistic and sample standard deviation (s) for this sample. b. Find a 95% confidence interval for the mean number of hours per week male seniors spend exercising. (Check conditions for using a normal distribution to compute this interval first.) e. Interpret the results of your confidence interval in the context of the problem.

E. In the StudentSurxey data, there are 30 male seniors. The table below gives the number of hours per week that cach said he spent exercising. Rescarchers are interested in the mean number of hours per week for male seniors spent exercising. Number of bauca males spent exercising a week 10 14 7 9 35 7 13 13 5 18 12 9 37 e 12 6 8 3 35 14 14 7 10 0 2 4 a Use 1-Var Stat with your L1 (List 1) to calculate the statistic and sample standard deviation (s) for this sample. b. Find a 95% confidence interval for the mean number of hours per week male seniors spend exercising. (Check conditions for using a normal distribution to compute this interval first.) e. Interpret the results of your confidence interval in the context of the problem.

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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E. In the StudentSurvey data, there are 30 male seniors. The table below gives the number of hours per
week that cach said he spent exercising. Rescarchers are interested in the mean number of hours per
week for male seniors spent exercising.
Number of boucs males spent exercising a week
10 14 7 9 3 5 7 13 13 5 18 12 9 3 7
6 12 6 8 3 3 5 14 14 7 19 0 2 4 6
Use 1-Var Stat with your L1 (List 1) to calculate the statistic and sample standard deviation (s) for this
sample.
b. Find a 95% confidence interval for the mean number of hours per week male seniors spend exercising-
(Check conditions for using a normal distrībution to compute this interval first.)
Interpret the results of your confidence interval in the context of the problem.
c.
d. Doctors have noted that male seniors should spend an average of 6 hours per week exercising. Perform a
hypothesis test to determine whether male seniors spend fewer than 6 hours on average exercising each
week.
1. State the null and alternative hypotheses.
2. Compute the appropriate test statistic and use Statkey, to identify the resulting p-value.
3. At a-05 significance level, what is your conclusion for your test?

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