Quarterly revenues (in $1,000,000's) for a national restaurant chain for a five-year period were as follows: Quarter Year 1 Year 2 Year 3 Year 4 Year 5 1 33 42 54 70 85 2 36 40 53 67 82 3 35 42 54 70 87 4 38 47 62 77 99 a. Use Regression Analysis to solve for the forecast equation that minimizes the sum of squared error. b. Forecast the four quarters of year 6.