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The human resources department of a large investment bank announced that the number of people it interviews monthly has a mean of 115, with a
The human resources department of a large investment bank announced that the number of people it interviews monthly has a mean of 115, with a variance of 289. The management of the bank suspects that the variance exceeds 289. Suppose that the management wants to take a small sample of months and carry out a hypothesis test to see if its suspicions have support. State the null hypothesisH0 and the alternative hypothesisH1 that it would use for this test.
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