Question 33 1 pts An air conditioning repair company has developed a regression model for predicting the time it will ta

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Question 33 1 Pts An Air Conditioning Repair Company Has Developed A Regression Model For Predicting The Time It Will Ta 1 (133.14 KiB) Viewed 21 times

Question 33 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 +0.291x1) + 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 bu is: For each additional month since the last maintenance service, repair time is expected to increase by 29 minutes. For each additional month since the last maintenance service, repair time is expected to increase by.29 hours. For each additional hour of repair time, the expected time since the last maintenance service will increase by 0.29 months. Repair time will be 29 hours if the last maintenance service was a month ago.