The electric power consumed each month by a chemical plant is thought to be related to the average product purity (x1 ) and the tons of product produced (X2). The past year's historical data are available and are presented in the following table. y 240 236 290 274 301 316 300 296 267 276 91 90 88 87 91 94 87 86 88 91 X2 100 95 110 88 94 99 97 96 110 105 Fit the multiple linear regression model using the above data set. Also predict the power consumption for a month in which x1= 90% and X2 = 98 tons