a. Calculate the correlation between "Copiers" and "Minutes". b. Obtain the linear regression equation of fitting Minutes on Copiers. C. Interpret the slope of the linear regression equation in the context of the problem. d. Calculate the coefficient of determination, R. Interpret R in the context of the problem. e. Test the hypothesis that the slope is equal to 0, i.e., testing Ho: P = 0 vs. Ho: P = 0. f. Calculate a point estimate of the expected time to service 4 copiers. g. Obtain a normal probability plot and comment on the validity of normal assumption. Service Time Data 3 9 Call Copiers 4 1 2 3456789DF 10 X 11 257-45246 1 3 y Minutes 109 58 138 189 37 82 103 134 68 112 154