Published in a choice of four different covers

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Reference no: EM131085180

1. A particular paperback book is published in a choice of four different covers. A certain bookstore keeps copies of each cover on its racks. To test the hypothesis that sales are equally divided among the four choices, a random sample of 100 purchases is identified.

a. If the resulting X 2 value were 6.4, what conclusion would you reach when using a test with significance level .05?

b. What conclusion would be appropriate at signifi- cance level .01 if X 2 5 15.3?

c. If there were six different covers rather than just four, what would you conclude if X 2 5 13.7 and a test with a = .05 was used?

Reference no: EM131085180

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