Mathematics, 27.11.2019 21:31 ambarpena14
Past experience indicates that the time required for high school seniors to complete a standardized test is a normalrandom variable with a standard deviation of 6 minutes. test the hypothesis that o = 6 against the alternative thato < 6 if arandom sample of the test times of 20 high school seniors has a standard deviation 5 = 4.51. use a 0.05 level ofsignificance.
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