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Mathematics, 16.03.2020 21:16 serenad2

A random sample of individuals is selected from a population with μ , and a treatment is administered to each individual in the sample. After treatment, the sample mean is found to be with . How much difference is there between the mean for the treated sample and the mean for the original population? (Note: In a hypothesis test, this value forms the numerator of the t statistic.) If there is no treatment effect, how much difference is expected between the sample mean and its population mean? That is, find the standard error for M. (Note: In a hypothesis test, this value is the denominator of the t statistic.) Based on the sample data, does the treatment have a significant effect? Use a two-tailed test with .

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