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Please show your work and include every step in a formal hypothesis test. 11. If you take a sample of 61 American adults and find

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Please show your work and include every step in a formal hypothesis test. 11. If you take a sample of 61 American adults and find they average 7.1 hours of sleep per night with a standard deviation of 1.2 hours, test the hypothesis that American adults average less than 8.0 hours of sleep using a confidence level of 95%. O W X

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