# Question

a. Click “1” for “# Samples.” Note the four data values and their mean. Change “slow” to “batch” and take at least 1000 samples using the “500” for “# Samples.”

b. What is the mean for the 1001 sample means? How close is it to the population mean, m?

d. Does the histogram of sample means have an approximately normal shape?

b. What is the mean for the 1001 sample means? How close is it to the population mean, m?

d. Does the histogram of sample means have an approximately normal shape?

## Answer to relevant Questions

a. Change the “# Observations per sample” to “4.” Using batch and 500, take 1000 samples of size 4. According to Nielsen’s Television Audience Report, in 2009 the average American home had 2.86 television sets (more than the average number of people per household, at 2.5 people). If the standard deviation for the number ...a. Calculate the z-score for an of 46.5 from a sample of size 35. b. Could this z-score be used in calculating probabilities using Table 3 in Appendix B? Why or why not? 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 ...c. How many of the sample means in part b have values between 46 and 55? What percentage is that? d. Compare the answers to parts a and c, and explain any differences that occurred.Post your question

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