The Following Table Includes the Information About a Monthly Time

question 99

Multiple Choice

The following table includes the information about a monthly time series. 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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