Mathematics, 12.02.2020 02:00 jmdlightsout12345

A rental car company claims the mean time to rent a car on their website is 60 seconds with a standard deviation of 30 seconds. A random sample of 36 customers attempted to rent a car on the website. The mean time to rent was 75 seconds. Is this enough evidence to contradict the company's claim? Use a significance level of 0.01. Find the power of this test to detect a true mean of 70 seconds.

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A rental car company claims the mean time to rent a car on their website is 60 seconds with a standa...