Mathematics, 20.09.2020 14:01 xandraeden32
The sick days of employees every two years in a company are normally distributed with a population standard deviation of 7 days and an unknown population mean. If a random sample of 20 employees is taken and results in a sample mean of 21 days, find a 95% confidence interval for the population mean.
Answers: 1
. . . ,Xn be the random sample of n employee's sick days. It is given that the random samples follows the Β Normal distribution along with standard deviation of 7 days. Let
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