Mathematics, 21.09.2021 14:00 lesliealvarado1022

The number of cars sold annually by used car salespeople is normally distributed with a variance of 2225. A random sample of 400 salespeople was taken and the mean number of cars sold annually was found to be 75. Find the 95% confidence interval estimate of the population mean.

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The number of cars sold annually by used car salespeople is normally distributed with a variance of 2225. A random sample of 400 salespeople was taken and the mean number of cars sold annually was found to be 75. Find the 95% confidence interval estimate of the population mean.​

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Another question on Mathematics

The number of cars sold annually by used car salespeople is normally distributed with a variance of 2225. A random sample of 400 salespeople was taken and the mean number of cars sold annually was found to be 75. Find the 95% confidence interval estimate of the population mean.