The human resources department of a large investment bank announced that the number of people it interviews monthly has a mean of 110, with a variance of 268.96. the management of the bank suspects that the variance exceeds 268.96. 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.

Step-by-step explanation:

Given : The human resources department of a large investment bank announced that the number of people it interviews monthly has a mean of 110, with a variance of 268.96.

The management of the bank suspects that the variance exceeds 268.96.

Since the claim is about variance, so the hypothesis will also be about variance.

Let denotes the population variance.

Then, the null and alternative hypothesis will be :_

idk sry

step-by-step explanation:

i would say c is the best answer, hope it's right!

good luck! =)

cutie~