carisabernard100 carisabernard100
  • 25-10-2022
  • Mathematics
contestada

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately
σ
=
50.2
. You would like to be 90% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required?

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