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 2.3lb of the population mean, and the population standard deviation is known to be 14 lb. 143 202 126 101
Added by Cristian B.
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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 3.4 lb of the population mean, and the population standard deviation is known to be 25 lb. Group of answer choices: 148 147 208 146
Christopher D.
How many women must be randomly selected to estimate the mean weight of women in one age group if we want 90% confidence that the sample mean is within 3.4 lb of the population mean, and the population standard deviation is known to be 25 lb? Include the formula for the sample size. a) 145 b) 147 c) 208 d) 148 e) None of the above
Sri K.
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