# Prior info needed to answer question A) True B) False 6) When performing a hypothesis test...

###### Question:   prior info needed to answer question

A) True B) False 6) When performing a hypothesis test on the mean w, we use a z-test when the population standard deviation is known. A) True B) False 7) When performing a hypothesis test on the mean , we use a t-test when the population standard deviation is not known. A) True B) False Use the following for 's 8-14 Marc wants to know if the mean age of the prison population in his city is more than 34 years. He obtains a random sample of 25 prisoners, and finds a mean age of 35.2 years. The population standard deviation is 4.3 years. Use a significance level of 0.05. 8) Identify step one of a hypothesis test for the mean u A) H.: 34 Ha u >34 claim B) H.: u 2 34 claim H: U-34 L.t. R.t. C) Ho: u = 34 Hg: u  34 claim 2-t D) H H < 34 H: H 34 claim Rt. E) None of the Above
10) Find the p-value A) 0.05 B) 0.92 C) 0.08 D) 0.09 E) None of the Above 11) Find the critical value (s) that define the rejection region A) 1.40 B) -1.96 C) 1.96 D) -1.40 E) None of the Above 12) Find the standardized test statistic A) 1.40 B) -1.96 C) 1.96 D) -1.40 E) None of the Above
Use the following for 's 8-14 Marc wants to know if the mean age of the prison population in his city is more than 34 years. He obtains a random sample of 25 prisoners, and finds a mean age of 35.2 years. The population standard deviation is 4.3 years. Use a significance level of 0.05. 8) Identify step one of a hypothesis test for the mean A) H: NS 34 H: 34 claim B) H: M2 34 claim H: -34 Lt. R.L. C) H: N= 34 H: ”34 claim 2-1 D) H: H 34 H: 234 claim Rt. E) None of the Above 9) Identify a B) 25 A) 34 C) 4.3 D) 0.05 E) None of the Above

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