I need help with computing the test statistic for this one. Thanks! Lester Hollar is vice president for human resources for a large manufacturing company. In recent years, he has noticed an increase inabsenteeism that he thinks is related to the general health of the employees. Four years ago, in an attempt to improve the situation, hebegan a fitness program in which employees exercise during their lunch hour. To evaluate the program, he selected a random sampleof eight participants and found the number of days each was absent in the six months before the exercise program began and in thesix months following the exercise program. Below are the results.Employee BeforeAfter1256.372474637528.53Click here for the Excel Data FileAt the 0.010 significance level, can he conclude that the number of absences has declined? Estimate the p-value.a. State the decision rule for 0.010 significance level. (Round your answer to 3 decimal places.)Reject HO ift >2.998b. Compute the test statistic. (Round your answer to 3 decimal places.)The test statistic is2,892

The table helps to obtain the sample mean and sample standard deviation: Here, di=Before-After Before After di (di-d¯)2 6 2 4 5.0625 5 6 -1 7.5625 7 2 5 10.5625 6 7 -1 7.5625 4 5 -1 7.5625 6 3 3 1.5625 5 2 3 1.5625 5 3 2 0.0625 ∑di=14 ∑(di-d¯)2=41.5Sample mean difference: d¯=∑din=148=1.75 Standard deviation of difference: sd=∑di-d¯2n-1=41.58-1=2.435 Test statistic: t=d¯sdn=1.752.4358=2.033 Therefore, the test statistic is 2.033.

Answered: b. Compute the test statistic. (Round…

Math

Statistics

b. Compute the test statistic. (Round your answer to 3 decimal places.) The test statistic is 2.892

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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