Scientists want to estimate the mean weight of mice after they have been fed a special...
Scientists want to estimate the mean weight of mice after they
have been fed a special diet. From previous studies, it is known
that the weight is normally distributed with standard deviation 3
grams. How many mice must be weighed so that a 99% confidence
interval will have a margin of error of 0.5 gram?
Homework Answers
Given,
SD = 3
E = 0.50
For 99% confidence, z = 2.576
Hence,
Sample size required
n = 239
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Scientists want to estimate the mean weight of mice after they
have been fed a special...
Scientists want to estimate the mean weight of mice after they have been fed a special...
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