Mathematics, 03.12.2021 23:40 kolibeilfuss
Suppose delivery time for distributors in an area are normally distributed and have a known population standard deviation of 9 minutes and an unknown population mean. A random sample of 21 distributors is taken and gives a sample mean of 161 minutes. Find the error bound (EBM) of the confidence interval with a 90% confidence level.
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Suppose delivery time for distributors in an area are normally distributed and have a known populati...
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