samueldfhung
06.05.2021 •
Mathematics
Past experience indicates that the time required for high school seniors to complete a standardized test is a normal random variable with a mean of 35 minutes. If a random sample of 20 high school seniors took an average of 33.1 minutes to complete this test with a standard deviation of 4.3 minutes.
Required:
Test the hypothesis, at the 0.05 level of signiï¬cance, that μ=35 minutes against the alternative.
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Ответ:
I Believe It Is All.