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Population mean weight of males

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Reference no: EM132850671

1. The weights for men are normally distributed. In 2015, the mean weight for men was known to be 191 pounds with a standard deviation of 25.6. pounds. Suppose that an investigator hypothesizes that weights are higher in 2020. In 2020 a sample of 100 males was taken. The mean weight was 197.1 pounds. At the 5% level of signi?cance, test the alternative hypothesis that the population mean weight of males was greater in 2020 than in 2015. What is the p-value for your test?

Reference no: EM132850671

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