Question
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately =27.7=27.7. You
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately =27.7=27.7. You would like to be 90% confident that your estimate is within 0.2 of the true population mean. How large of a sample size is required?
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Stochastic Calculus And Applications
Authors: Samuel N Cohen, Robert J Elliott
2nd Edition
1493928678, 9781493928675
