Answer Happy

Question 34 1 pts An air conditioning repair company has developed a regression model for predicting the time it will take to perform a repair. The estimated regression equation is: y-hat = 1.86 +0.29(x1) + 1.10(x2) - 0.61(x3) - where: y = Repair time (hours) X1 = Months since last maintenance service X2 = 0 if repair is mechanical; X2 = 1 if repair is electrical X3 = 0 if repair is done by Bob; X3 = 1 if repair is done by Dave Referring to the regression equation above, the correct interpretation of b2 is: 1.1 electrical repairs can be performed in the time it takes to perform 1 mechanical repair. O O O An electrical repair is expected to take 1.10 hours to perform. An electrical repair is expected to take 10% longer than a mechanical repair. o An electrical repair time is expected to take 1.10 hours longer to perform than a mechanical repair.