Management would like to know if there is convincing evidence that the distribution of responses about eating the potato salad differs for all employees who are sick versus those who are not sick. What are the appropriate hypotheses for this test?

The null hypothesis states that there is no difference in the response distributions for employees who are sick and those who are not sick. The alternative states that the distributions differ. Because the question asks about all employees, the hypotheses should describe the population groups, not just the 20 employees in each sample. Therefore, choice A is correct.

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