Information for Problems 4-7. The data in the table below contains the actual sales of regular unleaded gas at Quick-Gas in Kent. Leah, the manager of a gas station wants to forecast the sales of the regular unleaded gasoline for the next week (week 5) so the proper number of gallons can be ordered from the distributor. She has been using the Exponential Smoothing with a = 0.6 to produce the forecast. Week 1 2 Actual sale (gallons) 800 750 820 770 3 4 5 Forecast 800 800 770 800 ? What is the sale forecast for week 5? O 785.60 cars O 787.85 cars O 782.00 cars 0 790.80 cars Calculate the MAD using only weeks 2 to 4 data? O MAD = 36.83 OMAD = 35.33 O MAD = 43.33 MAD = 38.67 Calculate the MAPD using only weeks 2 to 4 data? O MAPD = 5.55% O MAPD = 4.75% O MAPD = 4.97% O MAPD = 4.57% Calculate the BIAS using only weeks 2 to 4 data? BIAS = -12.00 BIAS = -10.00 BIAS = -15.33 BIAS = -13.50