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Beyond Tea Inc. wants to forecast sales of its menthol green tea. The company wa

ID: 445624 • Letter: B

Question

Beyond Tea Inc. wants to forecast sales of its menthol green tea. The company wants to use simple mean or a three period moving average forecast monthly sales. Given sales data for the past 10 months use both forecasting methods to forecast periods 7 to 10 and then evaluate each. Which method should they use? Use the selected method to make a forecast for month 11. Show all work. No Excel.

MONTH                                                SALES

1                                                              5

2                                                              8

3                                                              15

4                                                              18

5                                                              20

6                                                              19

7                                                              17

8                                                              18

9                                                              19

10                                                           21

Explanation / Answer

1)three period moving average forecast monthly sales

Particulars             =                 Sales

4th month= 5+8+15/3=28/3=9.3

5th month = 8+15+18 /3=13.6

6th month =15+18+20=53/3=17.6

7th month = 18+20+19/3=57/3=19

8th month=20+19+17/3=56/3=18.6

9th month =19+17+18=54/3=18

10 month = 17+18+19/3=18

first method for 11 month calculations= If it is 3 month moving periods, 8 + 9+ 10 = 18 + 19 + 21 /3 =19.3

Second Method for 11 month calculations = Forecasting methods to forecast periods 4 month, 7+ 8 + 9+ 10/4 =17+18+19+21/4=18.75(sales)

3 month moving period is better =19.3 sales.

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