SOLUTION: A researcher wants to estimate the mean blood cholesterol level of young men ages 15-25 with a 96.66% confidence interval. The blood cholesterol level of young men follows a Normal
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Question 1197913: A researcher wants to estimate the mean blood cholesterol level of young men ages 15-25 with a 96.66% confidence interval. The blood cholesterol level of young men follows a Normal distribution with standard deviation = 50 mg/dl. How large a sample would the researcher need to take to estimate the mean blood cholesterol to within 5 mg/dl?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
0r
96.66% confidence interval = .17% z(.9966 + .0017) = 2.929
= 857.9 (always round Up )
n = 858
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