Question: Question 6 : Week 12 Question 2, (7 Marks) Amex PLC has gathered following information on the sales of face mask from April 2020 to

Question 6 : Week 12 Question 2, (7 Marks)

Amex PLC has gathered following information on the sales of face mask from April 2020 to September 2020.

Month

April

May

June

July August September

Sales ($)

17,000 18,000 19,500 22,000 21,000 23,000

You are required to;

a. Using linear trend equation forecast the sales of face masks for October 2020.

b. Calculate the forecasted sales difference if you use 3-period weighted moving average designed with the following weights: July 0.2, August 0.3 and September 0.5.

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