Mathematics, 18.03.2021 02:10 megaboy
The weight (in pounds) for a population of school-aged children is normally distributed with a mean equal to 135 ± 20 pounds (m ± s). Suppose we select a sample of 100 children (n = 100) to test whether children in this population are gaining weight at a .05 level of significance. What are the null and alternative hypothesis?
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