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A typical russet potato weighs about 173 g. Farmer Joe would like to estimate the average weight of his potatoes. The average weight of 41

A typical russet potato weighs about 173 g. Farmer Joe would like to estimate the average weight of his potatoes. The average weight of 41 potatoes from Joe is 188 grams and the sample standard deviation is 21 grams. Use the critical value t  = 2.0141 to find the margin of error for a two-sided 95% confidence interval for ?.

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