Question

A large company institutes an exercise break for its workers to see if this will improve job satisfaction, as measured by a questionnaire that was given to a random sample of workers to assess their satisfaction. Job Satisfaction Index 30 Complete parts a and b orker # Before 31 29 2 26 39 30 51 4 47 43 7 24 40 19 25 10 29 28 fter Use a paired t-test. Check the assumptions and conditions for inference. Select all assumptions and conditions that are 21 both satisfied and necessary for this test. A. Equal Variance Assumption C. Normal Population Assumption E. Independence Assumption B. Independent Groups Assumption D. Paired Data Assumption Click to select your answer(s) and then click Check Answer. 2

Which boxes should be checked?

Answer 1

THIS IS PAIRED T TEST QUESTION. SO FOR IN THIS CASE PAIRED DATA ASSUMPTION , NORMAL POPULATION ASSUMPTION MUST BE CHECKED.