Mathematics, 06.03.2020 16:48 joelpimentel

A random sample of 15 employees was selected. The average age in the sample was 31 years with a variance of 49 years. Assuming ages are normally distributed, the 98% confidence interval for the population average age is .

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A random sample of 15 employees was selected. The average age in the sample was 31 years with a vari...

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