Complete the following and upload either a photo of your work or an Excel spreadsheet.

Our school's cafeteria had the following amount of sales last year:

Month	Actual Sales ($)
January	3,000
February	8,000
March	3,700
April	4,100
May	4,700
June	5,700
July	6,300
August	7,200
September	8,000
October	4,600
November	7,000
December	8,000

a. Use a 3-month moving average to forecast the sales for the months May through December. b. Use a 4-month moving average to forecast the sales for the months May through December. c. Compare the performance of the two methods by using the mean absolute deviation as the performance criterion. Which method would you recommend? d. Compare the performance of the two methods by using the mean absolute percent error as the performance criterion. Which method would you recommend? e. Compare the performance of the two methods by using the mean squared error as the performance criterion. Which method would you recommend?