Using the Information provided below, answor tho following questions.

INFORMATION

The data in the table below shows the number of Next-generation Rangers exported to over 100 countries through Durban's roll-on roll-oll (RORO) vehicle terminal during 2022 and the first quarter of 2023.

May- Jun.

uL

Aug- Sep-

Month Jan-

Feb- Mar- Apr-

22

22

122

22

Oct.

22

Nov.

22

Dec-

22

Jan-

23

Feb-

23

Mar-

23

22

22

22

22

22

Export,

7000 9000 8600 9500 10200 12000 11000 12500 12000 12600 12800 13000 10800 12600 14000

units

demand planner wants to compare the relative performance of the weighted moving average method against the simple exponential method in forecasting the volume of export of the next-gen Ranger from the Silverton Assembly Plant.

Required:

54. Using the simple exponential smooting method (SESM), compute the forecasts for the February 2022 to March 2023 period.

(5marks)

Use a smoothing constant of 0.2 and assume a forecast of 7 000 units for January 2022.

• 5.2. Compute the three-month weighted moving average (3MWMA) forecasts for the April 2022 to March 2023 period, using weights (5marks) of 0.2, 0.3, and 0,5 (oldest data to newest data; respectively).
• 5.3. Using the forecasts calculated for the April 2022 to March 2023 period, calculate the Mean Absolute Percentage Error (MAPE)

(8marks)

of the simple smoothing method and the MAPE of the three-month weighted moving average method.

5.4. Which of the two methods should the demand planner use to forecast the volume of export of the next-Gen Ranger. Explain

(marks)

why?