The CEO of a major chain of stores claims that a particular store's average daily sales are significantly lower than the average daily sales of all the branch stores. The average daily sales at all the branch stores are $10,000. The average of 30 days of sales for the store in question is $9,750 with a standard deviation of $500.
a. Test the CEO's claim at the 0.05 alpha level, including the p-value.
State the hypothesis that you are checking. Summarize your results.