Mathematics, 14.11.2019 07:31 gursparks

You want to obtain a sample to estimate a population mean. based on previous evidence, you believe the population standard deviation is approximately ? =62.3? =62.3. you would like to be 95% confident that your estimate is within 2 of the true population mean. how large of a sample size is required?
use a z* value accurate to two places for this problem. (not z = 2)
n =

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