Grey's Audiovisual rents audio and visual equipment to musicians for local concerts. The company is interested in forecasting the rentals for the d2-console so that it can make sure the d2-console is on hand when needed. The d2-console data for the last 10 months are shown here.

a. Prepare a forecast for months 6 through 10 by using three- and five-month moving averages. What is the forecast for month 11?
b. Calculate the mean absolute deviation (for periods 6-10) for each forecasting method.
c. What are your recommendations for Gray's?

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MONTH Jan. Feb March April DEMAND MONTH DEMAND 24 Jity Aug. 31