The weekly earnings of students in one age group are normally distributed with a standard deviation of 39 dollars.

Beyond Trafficking and Slavery
October 17, 2020
Assignment 1: Creating Effective Goals
October 17, 2020

The weekly earnings of students in one age group are normally distributed with a standard deviation of 39 dollars.

The weekly earnings of students in one age group are normally distributed with a standard deviation of 39 dollars. A researcher wishes to estimate the mean weekly earnings of students in this age group. Find the sample size needed to assure with 98 percent confidence that the sample mean will not differ from the population mean by more than 2 dollars.
 
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