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Question: repair time in months since last hours 29 30 service...

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Repair Time in Months Since Last Hours 2.9 3.0 Service 2 6 8 3 2 7 Type of Repair Repairperson Electrical Mechanical Electrical Mechanical Electrical Electrical Mechanical Mechanical Electrical Electrical Donna Newton Donna Newton Bob Jones Donna Newton Donna Newton Bob Jones Bob Jones Bob Jones Bob Jones Donna Newton 1.8 2.9 4.9 4.2 8 4 6d Create a new dummy variable that is equal to。if the repairperson s Bob ones and 1 the repairperson s or na Newton D eo the mutip e regress on equation n cel ta ored ct rea r me, given he numberof month ssin last maintenance service and the Let x1 represent the number of months since the last maintenance service. Let x2 represent the repairperson. If required, round your answers to four decimal places. For subtractive or negative numbers use a minus sign even if there is a sign before the blank. (Example: -300) 0.9305 0.3876 3x1 1.2627 x2 What are the interpretations of the estimated regression parameters? The input in the box below will not be graded, but may be reviewed and considered by your instructor blank What is the coefficient of determination? If required, round your answers to four decimal places. Interpret the coefficient of determination. The input in the box below will not be graded, but may be reviewed and considered by your instructor blank (e) Develop the multiple regression equation to predict repair time given the number of months since the last maintenance service, the type of repair, and the repairperson Let x1 represent the number of months since the last maintenance service. Let x2 represent the type of repain Let x3 represent the repairperson. If required, round your answers to four decimal places. For subtractive or negative numbers use a minus sign even if there is a +sign before the blank. (Example: -300). 03 3 X3 What are the interpretations of the estimated regression parameters? The input in the box below will not be graded, but may be reviewed and considered by your instructor. blank What is the coefficient of determination? If required, round your answers to four decimal places . 03

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