Refer to the Baseball 2012 data, which report information on the 30 Major League Baseball teams for the 2012 season.
a. The mean attendance per team for the season was 2.495 million, with a standard deviation of 0.6421 million. Use the normal distribution to estimate the number of teams with attendance of more than 3.5 million. Compare that estimate with the actual number. Comment on the accuracy of your estimate.
b. The mean team salary was $98.023 million, with a standard deviation of $36.832 million. Use the normal distribution to estimate the number of teams with a team salary of more than $50 million. Compare that estimate with the actual number. Comment on the accuracy of the estimate.