A telemarketing company wants to compare the effectiveness of five of its employees by looking at the percentage of survey questions completed.Data from four past surveys are randomly chosen for each of the employees,and the percentage of completed questions is calculated.
A)H0: μ1 = μ2 = μ3 = μ4 vs.the alternative that not all survey mean percentages are equal
B)H0: μ1 ≠ μ2 ≠ μ3 ≠ μ4 vs.the alternative that all survey mean percentages are equal
C)H0: μ1 ≠ μ2 ≠ μ3 ≠ μ4 ≠ μ5 vs.the alternative that all employee mean percentages are equal
D)H0: μemp ≠ μsurv vs.the alternative that employee and survey mean percentages are equal
E)H0: μ1 = μ2 = μ3 = μ4 = μ5 vs.the alternative that not all employee mean percentages are equal

Question

Quizplus · Accepted Answer

The hypothesis test is concerned with comparing the mean survey question completion percentages among five employees, making choice C not relevant. Additionally, the null hypothesis in choice D is not comparing means, but rather comparing different types of means, making it not applicable. Choice B is testing the hypothesis that all survey means are not equal, which is not what the question is asking for. Finally, choice A is testing for equality among survey means, not the means of the individual employees. Therefore, E is the best choice as it directly compares the mean completion percentages of each employee, which is the purpose of the study.

A Telemarketing Company Wants to Compare the Effectiveness of Five