Sales of industrial vacuum cleaners at Jonquel Parker Supply Co. over the past 13 months are shown

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Sales of industrial vacuum cleaners at Jonquel Parker Supply Co. over the past 13 months are shown below:


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a) Using a moving average with three periods, determine the demand for vacuum cleaners for next February.b) Using a weighted moving average with three periods, determine the demand for vacuum cleaners for February. Use 3, 2, and 1 for the weights of the most recent, second most recent, and third most recent periods, respectively. For example, if you were forecasting the demand for February, November would have a weight of 1, December would have a weight of 2, and January would have a weight of 3.c) Using MAD, determine which is the better forecast.d) What other factors might Parker consider in forecasting sales?

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