Question: California Speeding Listed below are recorded speeds (in mi/h) of randomly selected cars traveling on a section of Highway 405 in Los Angeles (based on data from Sigalert). That part of the highway has a posted speed limit of \(65 \mathrm{mi} / \mathrm{h}\). Assume that the standard deviation of speeds is \(5.7 \mathrm{mi} / \mathrm{h}\) and use a 0.01 significance level to test the claim that the sample is from a population with a mean that is greater than \(65 \mathrm{mi} / \mathrm{h}\).

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