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Scientists want to estimate the mean weight of mice after they have been fed a...

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Scientists want to estimate the mean weight of mice after they have been fed a special diet A sample of 70 mice have been weighed and the standard deviation was s 2 grams Estimate the number of mice that must be weighed for a 98 confidence interval to have a margin of error of 0 4 grams The Za2 for 98 confident interval is 2 326 Formula 1 0 125 n

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