Sales of Volkswagens have grown steddly at auto dealerships in Nevada during the past 5 years (see table below). Using exponential smoothing with a smoothing constant ( ) of 0.30 and a starting forecast of 415.00 , the following sales forecast has been developed: The MAD for a forecast developed using exponential snoothing with =0.30 is sales (round your response to wo decimal places). Forecasted sales for years 2 through 6 using exponettial smocthing wath =0.60 and a starting fonecast of 415.00 are (round your responses to fwo decimal places). The MAO for a forecast developed uting exponential smoothing with a =0.60 is sales (round your response to two decinat places). Forecasted sales for year 2 through 6 using exponential smoching wer =0.90 and a staring forecast of 415 .00 are (roind your responses to Mro decimal places)