5. Answer the following questions on-line by checking either True or False. (a)

ID: 3153205 • Letter: 5

Question

5. Answer the following questions on-line by checking either True or False.

(a) When the p-value is larger than , we accept the null hypothesis.

(b) If the population mean is known, there is no need to test hypotheses concerning the population mean.

(d) If we reject a null hypothesis at the 1% level, we also reject it at the 5% level.

(e) The decision to use a one-sided or two-sided test is usually made after the data is analyzed.

a) True, when p value is not less than alpha, fail to reject null hypothesis, that is retaining or accepting it.

b) False. Hypothesis test is done to check claim based on ppopulation mean.

c) True. Confidence level is probaility that the value sof parameter falls within specified range of values.

d) True. If p value is less than 0.01, it should be less than 0.05 too.

e) False. The decision to use one-sided or two-ssided test is based on the tentative proposition of alternative hypothesis.

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.