Quarterly Revenues (In $1,000,000's)for a National Restaurant Chain for a Five-Year

Essay

Quarterly revenues (in $1,000,000's)for a national restaurant chain for a five-year period were as follows: $$\begin{array} { c c c c c c } \text { Quarter } & \text { Year 1 } & \text { Year 2 } & \text { Year 3 } & \text { Year 4 } & \text { Year } 5 \\\hline 1 & 33 & 42 & 54 & 70 & 85 \\2 & 36 & 40 & 53 & 67 & 82 \\3 & 35 & 42 & 54 & 70 & 87 \\4 & 38 & 47 & 62 & 77 & 99\end{array}$$
a.Solve for the forecast equation that minimizes the sum of squared error.
b.Forecast the four quarters of year 6.