Given the following regression output: Predictor Coeff SE Coeff T P CONSTANT 84.998 1.863 45.61 000 X1 2.391 1.200 1.99 0.051 X2 -0.04086 0.1717 -0.238 0.02 Analysis of Variance Source df SS MS F P Regression 2 77.907 38.854 4.14 0.021 Residual Error 62 583.693 9.414 Total 64 661.600 a) Write the regression equation. b) If x1 is and x2 is 11, what is the value of the dependent variable? c) What is the sample size? d) How many independent variables are there? e) Conduct a global test of hypothesis to see if any of the set of regression coefficients could be different from 0. Use 0.05 significance level. f) Conduct a test of hypothesis for each independent variable. Use 0.05 significance level. g) Outline a strategy for deleting independent variables in this case.