# Refer to the baseball 2012 data, which report information on the 30

Question 1

Refer to the Baseball 2012 data, which report information on the 30 Major League Baseball teams for the 2012 season. Assume the 2012 data represents a sample.

a. Develop a 95% confidence interval for the mean number of home runs per team.

b. Develop a 95% confidence interval for the mean number of errors committed by each team.

c.      Develop a 95% confidence interval for the mean number of stolen bases for each team.

Question 2

Refer to the Real Estate data, which report information on the homes sold in Goodyear, Arizona, last year.

a. A recent article in the Arizona Republic indicated that the mean selling price of the homes in the area is more than \$220,000. Can we conclude that the mean selling price in the Goodyear, AZ, area is more than \$220,000? Use the .01 significance level. What is the p-value?

b. The same article reported the mean size was more than 2,100 square feet. Can we conclude that the mean size of homes sold in the Goodyear, AZ, area is more than 2,100 square feet? Use the .01 significance level. What is the p-value?