Mathematics, 22.03.2021 16:20 izzy201995

3. A Simple Random Sample of 20 postal employees found that the average amount of time these employees had
worked for the U. S. Postal Service was 7 years
with a standard deviation of 2 years. Construct and interpret a 95% confidence interval for the mean years of service of all postal employees

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3. A Simple Random Sample of 20 postal employees found that the average amount of time these employ...