Mathematics, 05.05.2020 01:16, aweller3898

How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 2.1 lb of the population mean, and the population standard deviation is known to be 19 lb.

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How many women must be randomly selected to estimate the mean weight of women in one age group. We w...