# Question: Salaries for various positions can vary significantly depending on whether

Salaries for various positions can vary significantly, depending on whether or not the company is in the public or private sector.The U.S. Department of Labor posted the 2007 average salary for human resource managers employed by the federal government as $76,503. Assume that annual salaries for this type of job are normally distributed and have a standard deviation of $8850.

a. What is the probability that a randomly selected human resource manager received over $100,000 in 2007?

b. A sample of 20 human resource managers is taken and annual salaries are reported.What is the probability that the sample mean annual salary falls between $70,000 and $80,000?

a. What is the probability that a randomly selected human resource manager received over $100,000 in 2007?

b. A sample of 20 human resource managers is taken and annual salaries are reported.What is the probability that the sample mean annual salary falls between $70,000 and $80,000?

## Answer to relevant Questions

Based on data from 1996 through 2006 from the Western Regional Climate Center, the average speed of winds in Honolulu, Hawaii, equals 10.6 miles per hour. Assume that wind speeds are approximately normally distributed with a ...Referring to Example 7. 6, what height would bound the lower 25% of all samples of size 25? a. What is a sampling distribution of sample means? b. A sample of size 3 is taken from a population, and the sample mean is found. Describe how this sample mean is related to the sampling distribution of sample means. A manufacturer of light bulbs claims that its light bulbs have a mean life of 700 hours and a standard deviation of 120 hours. You purchased 144 of these bulbs and decided that you would purchase more if the mean life of ...a. Find the mean and standard deviation of x for a binomial probability distribution n _ 200 with and p _ 0.3 . b. Use a computer to construct the probability distribution and histogram for the random variable x of the ...Post your question