Workers andsenior-level bosses were asked if it was seriously unethical to monitor employeee-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.

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Click the icon to view the critical values of 2 table.

Yes

No

Workers

195

243

Bosses

41

86

a. State the null and the alternative hypotheses. Choose the correct answer below.

A.

The nullhypothesis: There is some relationship between response and whether the subject is a worker or asenior-level boss.

The alternativehypothesis: Response is independent of whether the subject is a worker or asenior-level boss.

B.

The nullhypothesis: Response is independent of whether the subject is a worker or asenior-level boss.

The alternativehypothesis: There is some relationship between response and whether the subject is a worker or asenior-level boss.

Your answer is correct.

b. Assuming independence between the twovariables, find the expected frequency for each cell of the table.

Table of expected frequenciesYes

No

Workers

nothing

nothing

Bosses

nothing

nothing

(Round to the nearest tenth asneeded.)

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