SOLUTION: A person wish to estimate with 95% certainty the mean of a normal population of ages to within 3 and a half years. This population is known to have a standard deviation of 11.4 yea
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Question 744532: A person wish to estimate with 95% certainty the mean of a normal population of ages to within 3 and a half years. This population is known to have a standard deviation of 11.4 years. What is the smallest size sample you can use? And if we wish 90% certainty will the sample size be greater than or less than the answer you just got?
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