A company institutes an exercise break for its workers to see if this will impro

Question

A company institutes an exercise break for its workers to see if this will improve job sastisfaction, as measured by a questionnaire that assesses workers' satisfaction. The company wants to assess the effectiveness of the exercise program. Explain why this cannot be done with a two-sample t-test 2 29 37 Job Satisfaction Index 3 28 49 6 28 42 7 25 40 8 20 25 orker # Before 4 35 32 29 40 15 29 26 38 fter Select all that apply A. The Normal population assumption is not met. The histograms of these observations are B. The independence assumption is not met. Since the population size is unknown, the 10% C. The independent groups assumption is not met. Since these are before and after scores 38 not approximately Normal condition cannot be verified for the same individuals, the observations are matched D. The Normal population assumption is not met. Not enough information is given to verify the nearly Normal condition E. All of the assumptions required for a two-sample t-test are met

Explanation / Answer

Answer:-option

C) The independent groups assumption is not met.Since these are before and after scores for the same individuals, the observations are matched

E) All of the assumptions required for a two-sample t-test are met.

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