Exhibit 18

question 65

Multiple Choice

Exhibit 18.2.The following table includes the information about a monthly time series. Refer to Exhibit 18.2.When a forecast is made by the three-month moving average method,all three monthly observations used to make this forecast are treated equally in the sense that each of them has the same weight of 1/3.What is the forecast for May when the three-month weighted moving average method is applied with the weights: 1/6,2/6,and 3/6? Assign the smallest weight to the oldest data and the largest weight to the most recent data.

• A)19.00
• B)24.00
• C)18.67
• D)21.17

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