# Sampling Distribution

use the Sample Size Estimator

In the early years of the twenty-first century, annual salaries for federal employees in the Upper Midwest averaged approximately $42,000, with a population standard deviation (?) of $4,900. If we drew a random sample of 25 federal employees from this population:

What would the standard error of the mean be?

What is the probability that the sample mean would be between $41,000 and $43,000?

What is the probability that the sample mean would be between $41,000 and $43,000 if we increased the sample size to 100?

https://brainmass.com/statistics/statistical-inference/sampling-distribution-460787

#### Solution Summary

Sampling Distribution

$2.19