Sales of tablet compulers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below: a) The forecast for weeks 2 through 10 using exponential smoothing with a =0.50 and a week 1 initial forecast of 20.0 are (round your responses to two docimar places): b) For the forecast developed using exponential smoothing ( a=0.50 and intal forecast 20.0 ), the MAD = sales (round your response to two decimal places)