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 :_

i am currently in the exact same situation rn. algebra2/adv algebra is killing

step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: