The number of internal disk drives (in millions) made at a plant in Taiwan during the past 5 years follows: Year 1 2 3 4 5 Disk Drives 142 164 196 204 220 a) Forecast the number of disk drives to be made next year, using linear regression. b) Compute the mean squared error (MSE) when using linear regression. c) Compute the mean absolute percent error (MAPE).