Question: Problem 18-4 Here are the data for the past 21 months for actual sales of a particular product: January February March April May June July

Problem 18-4 Here are the data for the past 21
Problem 18-4 Here are the data for the past 21 months for actual sales of a particular product: January February March April May June July August September October November December LAST YEAR 315 418 390 430 400 480 430 320 385 530 592 555 THIS YEAR 380 400 350 460 390 395 355 245 340 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. Do 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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