The average cost of a speeding ticket plus court fees is approximately $150. A random sample of 38 speeding ticket court cases showed that the mean cost was $152.59. At the 0.01 level of significance, is that greater than $150? The population standard deviation is $10.78.

For Exercises perform each of the following steps.
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.

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