Answer Happy

Question 36 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 bo is: The minimum expected repair time for any repair job is 1.86 hours. An electrical repair performed by Dave is expected to take 1.86 hours if the last maintenance service was performed 1 month ago. An electrical repair performed by Dave is expected to take 1.86 hours longer than a mechanical repair performed 15y Bob. O A mechanical repair performed by Bob is expected to take 1.86 hours if the last maintenance service was performed 0 months ago.