Mathematics Homework Help

Mathematics Homework Help. Please help with problem. Thanks

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 standard deviation of 15.7. The management of the bank suspects that the standard deviation exceeds 15.7. 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 hypothesis  and the alternative hypothesis  that it would use for this test.

Mathematics Homework Help

 
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