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What is the mean of the sampling distribution

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The weight (in pounds) for a population of school-aged children is normally distributed with a mean equal to 139 ± 16 pounds (?? ± ??). Suppose we select a sample of 100 children (n = 100) to test whether children in this population are gaining weight at a 0.05 level of significance.

-What is the critical value for this test?

-What is the mean of the sampling distribution?

-What is the standard error of the mean for the sampling distribution?

Reference no: EM132843412

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