An office supply company services copiers and tracks how manymachines are serviced and the length of time (in minutes) for aservice call. The data below for 11 clients is below.
Sum X = 46 Sum Y= 234 Sum XY = 5797 Sum X2 =1180 SumY2 =146608
1) Calculate SSYY, SSXX,SSXY
2) Calculate b0, b1
3) Interpret the estimated slope coefficient.
4) Construct the appropriate ANOVA table.
5) Calculate R2.
6) Interpret the coefficient of determination.
6) Calculate r.
7) Calculate the calculated t statistic for testing the slopecoefficient.
8) Calculate the calculated t statistic for testing thecorrelation coefficient.
9) Find the residuals for observations #2 (X = 4 ; Y = 109) and#4 (X = 7; Y = 189)
