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A certain vehicle emission inspection station advertises that the wait time for customers is less than 10 minutes. A local resident wants to test this
A certain vehicle emission inspection station advertises that the wait time for customers is less than 10 minutes. A local resident wants to test this claim and collects a random sample of 64 wait times for customers at the testing station. He finds that the sample mean is 8.44 minutes, with a standard deviation of 4.1 minutes. Does the sample evidence support the inspectionstation's claim? Use the =0.01 level of significance to test the advertised claim that the wait time is less than 10 minutes.
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