The competing hypotheses for a particular hypothesis test are as follows: H0: μ < 1000 miles Ha: μ > 1000 miles Assume the population standard deviation is known to be 80 miles and that you intend to take a random sample of size 64. Using a significance level of .05,
a. State your decision rule in miles.
b. If the sample mean is 1022 miles, should you reject the null hypothesis? Explain.