Marilyn Marshall, a Professor of sports economics, has obtained a data set of home attendance for each of the 30 major league baseball franchises for each season from 2010 through 2016. Dr. Marshall suspects the data, provided in the file AttendMLB, is in need of a thorough cleansing. You should also find a reliable source of Major League Baseball attendance for each franchise between 2010 and 2016 to use to help you identify appropriate imputation values for data missing in the AttendMLB file.
a. Are there any missing values in Dr. Marshall’s data? If so, identify the teams and seasons for which data are missing and which values are missing for each of these teams and seasons. Use the reliable source of Major League Baseball Attendance for each franchise between 2010 and 2016 you have found to find the correct value in each instance.
b. Are there any values in Dr. Marshall’s data that appear to be erroneous? If so, identify the teams and seasons for which data appear to be erroneous and which values appear to be erroneous for each of these teams and seasons. Use the reliable source of Major League Baseball Attendance for each franchise between 2010 and 2016 you have found to find the correct value in each instance.