The average cost of owning and operating an automobile is $9122 per year.A random survey of 40 owners revealed an average cost of $9350 with a population standard deviation of $750.Is there sufficient evidence to conclude that the average is greater than $9122.Use = 0.01.

1) State the hypotheses.

2) Find the critical value.

3) Compute the test value.

4) Make the decision.

5) Summarize the results.