Refer to the Baseball 2016 data, which report information on the 30 Major League Baseball teams for the 2016 season. Assume the 2016 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 batting average by each team.
c. Develop a 95% confidence interval for the mean earned run average (ERA) for each t