suppose that the amount of time, in minute, a STAT410 student spends on GroupMe in a week is normally distributed with standard deviation 18 and unknown mean.we will use a random sample n=9 STAT410 student to test

Let Ho: u=70 v.s. H1 not equal to 70

1) If the sample mean X=79.24min, find the p-value of the test.

2) Find the Rejection region for the test at alpha= 0.05.

3) Find the power of the test if u=75.31 and alpha = 0.05 is used