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We are interested in determining whether the variances of the sales at two music stores (A...

We are interested in determining whether the variances of the sales at two music stores (A and B) are equal. A sample of 25 days of sales at store A has a sample standard deviation of 30, while a sample of 16 days of sales from store B has a sample standard deviation of 20. At 95% confidence, the null hypothesis _____. a. should be rejected b. should not be rejected c. should be revised d. None of these answers are correct.

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a. should be rejected

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