The following is an ANOVA table from fitting a regression model is SAS with three continuous predictors x1, x2, and x3 to a response Y; several parts of the table are missing. The sample size is n = 19 Source Model Error DF Sum of Squares| Mean Square F value Pr> F dfR 4966.67801 F 0.0021 dfE SSE Corrected Total 18 88087.68421 MSR MSE (a) What are the missing values of dfR, dfE, SSE, MSR, MSE, F in the ANOVA Table (b) Compute and interpret R2 for this model (c) What does the p value for the F test in the ANOVA table test? What do you conclude at the 5% level? (d) What is an estimate of o?