8.79 Worker absences and the bottom line
Refer to Exercises 8.76 through 8.78. Suppose that the companies participating in the new studies are the same as the companies in the original study. Would your answers to any of the parts of Exercises 8.77 and 8.78 change? Explain your answer.
8.79
The results in the previous exercises assume independent samples; if the same companies were used, this would not be the case and the results from comparing the two studies would not be valid.