Random sample of teenagers asks how many minutes

Reference no: EM13694575

A random sample of teenagers asks how many minutes per day they watch TV. There is a population variance of 625. The null hypothesis you want to test is H0 : µT V < 100 versus the alternative HA : µT V ? 100 for the given sample sizes. Your task is to find the critical values ¯xcrit at the? = .05 level. This means that you will reject your null if your sample mean is greater than ¯xcrit.

a) n=25

b) n=44

Reference no: EM13694575

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