The data accompanying this exercise show the weekly stock price for Home Depot. Assume that stock prices are normally distributed with a population standard deviation of $3.
a. State the null and the alternative hypotheses in order to test whether or not the average weekly stock price differs from $30.
b. Specify the critical value(s) of the test at the 5% significance level.
c. Compute the value of the test statistic.
d. At α = 0.05, can you conclude that the average weekly stock price does not equal $30?