Question: Here are the data for the past 21 months for actual sales of a particular product: ETT January February March April May June July August

Here are the data for the past 21 months for

Here are the data for the past 21 months for actual sales of a particular product: ETT January February March April May June July August September October November December LAST YEAR 320 415 455 445 395 450 415 365 350 515 565 535 THIS YEAR 245 370 375 470 400 340 325 295 375 Develop a forecast for the fourth quarter using a three-quarter, weighted moving average. Weight the most recent quarter 0.50, the second most recent 0.25, and the third 0.25. Solve the problem using quarters, as opposed to forecasting separate months. (Round your answer to 2 decimal places.) Forecast for the fourth quarter

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