The competing hypotheses for a particular hypothesis test are as follows: H 0 : > $

Question:

The competing hypotheses for a particular hypothesis test are as follows: H₀: μ > $ 300 H_a: μ < $ 300 Assume the population standard deviation is known to be $ 60 and that you intend to take a random sample of size 36. Using a significance level of .05,
a. State your decision rule in $ s.
b. If the sample mean is $ 266, should you reject the null hypothesis? Explain.