Annual salaries for federal employees

Assignment Help Basic Statistics

Reference no: EM13100457

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 (σ) 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?

Reference no: EM13100457

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