(a) Using a moving average with three periods determine the demand for vacuum cl

(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) Evaluate the accuracy of each of these methods.(d) What other factors might R. Lowenthal consider in forecastingsales?