Sales of quilt covers at Bud Banis's discount department store in Carbondale over the past year are shown below.

Management prepared a forecast using a combination of exponential smoothing and its collective judgment for the $4$

months $($March$,$ April, May, and June$)$:

a$)$ MAD for the forecast developed by the management's technique $=$

sales $($round your response to two

decimal places$).$

MAPE for the forecast developed by the management's technique $=,\%($round your response to two decimal places$).$

b$)$ Using the Naive Method, the forecast for period March through June is $($round your response to two decimal places$)$:

MAD for the naive forecast $=,$ sales $($round your response to two decimal places$).$

MAPE for the forecast developed by the naive approach $=|\%($round your response to two decimal places$).$

c$)$ When comparing MAD for the two approaches, the better forecast is achieved using the

When comparing MAPE for the two approaches, the better forecast is achieved using the