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):

Month	Jul	Aug	Sep	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	Jun
Unit Sales	102	97	94	108	120	120	95	85	101	98	88	110
Management's Forecast									122	114	112	110

a) MAD

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for the forecast developed by the management's technique =

nothing

sales (round your response to two decimal places).