Question: Refer to the previous exercise. The output shows some results of using software to analyze the data with a significance test. Paired T for BeforeAfter

Refer to the previous exercise. The output shows some results of using software to analyze the data with a significance test.
Paired T for Before€”After

T-Test of mean difference = 0 (vs not = 0):
T-Value = 6.93 P-Value = 0.020
a. State the hypotheses to which the reported P-value refers.
b. Explain how to interpret the P-value. Does the exercise program seem beneficial to lowering blood pressure?
c. What are the assumptions on which this analysis is based?

Mean StDev SE Mean 8.660 5.774 2.887 Before After Difference 3 150.0 15. 130.0 10.0 20.0 5.0

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