The manager of the Petroco Service Station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from the distributor. The owner has accumulated the following data on demand for unleaded gasoline from sales during the past $10$ months: Months October November December January February March April May June July Demand $8007256305006456907308101200980$ Part $1$ Compute the following: a$-$ MA$3$ b$-$ MA$4$ c$-$WMA$3(0\mathrm{.}5,0\mathrm{.}3,0\mathrm{.}2)$ d$-$Exponential Smoothing forecast $($a$=0\mathrm{.}3)$ e$-$Adjusted Exponential Smoothing forecast $($a$=0\mathrm{.}3,$ B$=0\mathrm{.}2)$ Part $2$ Using MAD, determine which of these five forecasts is more accurate. The manager of the Petroco Service Station wants to forecast the dernand for unleaded gasoline next month so that the proper number of gallons can be ordered from the distributor. The owner has accumulated the following data on demand for unleaded gasoline from sales during the past $10$ months: Part $1$ Compute the following: a$-$ MA$3$ b$-$ MA$4$ c$-$ WMA$3(0\mathrm{.}5,0\mathrm{.}3,0\mathrm{.}2)$ d$-$ Exponential Smoothing forecast $(\backslash$alpha $=0\mathrm{.}3)$ e$-$ Adjusted Exponential Smoothing forecast $(\backslash$alpha $=0\mathrm{.}3,\backslash$beta $=0\mathrm{.}2)$ Part $2$ Using MAD, determine which of these five forecasts is more accurate.