Let H 0 : 80 vs H 1 : gt;80. We obtain the following result by empirical study: (1) Calculate the test statistic z calc (2) Find p -value for the...

Let H0: μ≤80 vs H1:µ>80.

We obtain the following result by empirical study:

(1) Calculate the test statistic zcalc

(2) Find p-value for the sample.

(Hint p-value = P(Z>zcalc)=1−P(Z<zcalc), where Z~N(0,1))

(3) Is H0 rejected by the right tailed test for significant level at α=0.05?

Here,     is the sample mean, σ is the population standard deviation, and n is the number of samples.

Use the attached table for Z~N(0,1) .