Based on the data set, perform a regression analysis and correlation analysis, and answer the  

questions given below.  2022 latest answers

a. Derive the multiple regression equation and Interpret the meaning of all the coefficients.  

b. Interpret the coefficient of determination.  

c. At 5% significance level, test the overall model significance.  

d. At 5% significance level, assess the significance of independent variables in the model.  

e. Based on the above analysis in a -d, discuss the usefulness of the model for prediction