Scientists want to estimate the mean weight of mice after they have been fed a special diet.
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Question:
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 of 3 gram. How many mice must be weighed so that a 95% confidence interval will have a margin of error of 0.4 grams? Write only an integer as your answer.
Related Book For
Statistical Reasoning for Everyday Life
ISBN: 978-0321817624
4th edition
Authors: Jeff Bennett, Bill Briggs, Mario F. Triola
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