Question: 5. Past experience indicates that the time for computer science students to complete a quiz is a normal random variable with mean 35 minutes and

5. Past experience indicates that the time for computer science students to complete a quiz is a normal random variable with mean 35 minutes and a standard deviation of 4.3 minutes. If a random sample of 20 computer science students took an average of 33.1 minutes to complete the quiz, test the hypothesis at a 0.05 significance level that = 35 minutes against the alternative that < 35 minutes.

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