In: Statistics and Probability
Workers and senior-level bosses were asked if it was seriously unethical to monitor employee e-mail. The results are summarized in the table to the right. Use a 0.05 significance level to test the claim that the response is independent of whether the subject is a worker or a boss.
workers Yes 195 No 243
bosses yes 41 No 85
a. State the null and the alternative hypotheses. Choose the correct answer below.
A. The null hypothesis: Response is independent of whether the subject is a worker or a senior-level boss. The alternative hypothesis: There is some relationship between response and whether the subject is a worker or a senior-level boss. Your answer is correct.
B. The null hypothesis: There is some relationship between response and whether the subject is a worker or a senior-level boss. The alternative hypothesis: Response is independent of whether the subject is a worker or a senior-level boss. b. Assuming independence between the two variables, find the expected frequency for each cell of the table.
Table of expected frequencies
YES NO
Workers
Bosses
Round to nearest tenth