The monthly sales revenue (in hundreds of dollars) of a company for one year is listed below.

Month	Sales ($100s)
January	12,354
February	13,657
March	14,536
April	13,478
May	16,590
June	19,790
July	17,987
August	18,657
September	19,765
October	18,678
November	20,678
December	23,675

a. Compute MSE using the most recent value as the forecast for the next period. What is the forecast for the next month? b. Compute MSE using the average of all the data available as the forecast for the next period. What is the forecast for the next month?

c. Which method appears to provide the better forecast?