Johnson Filtration, Inc., provides maintenance service for water-filtration systems throughout southern Florida. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson rerformed the service. The revised data follow. Repair Time Months Since in Hours Last Service Type of Repair Repairperson 3.0 Electrical Dave Newton 3.0 6. Mechanical Dave Newton 4.8 8. Electrical Bob Jones 1.9 Mechanical Dave Newton 2.9 2 Electrical Dave Newton 5.0 7. Electrical Bob Jones 4.2 9. Mechanical Bob Jones 4.7 8. Mechanical Bob Jones 4.5 4 Electrical Bob Jones 4.5 6. Electrical Dave Newton a. Develop the estimated regression equation to predict the repair time given the number of months since the last maintenance service, the type of repair, and the repairperson who performed the service. Assume that x2 = 1 if the type of repair is electrical and 23 =1 if Dave Newton performed the service. Enter negative value as negative number. Time = bo + bMonths + b2Type + b3 Person Round your answers to three decimal places. bo 1.847 b2
Johnson Filtration, Inc., provides maintenance service for water-filtration systems throughout southern Florida. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson rerformed the service. The revised data follow. Repair Time Months Since in Hours Last Service Type of Repair Repairperson 3.0 Electrical Dave Newton 3.0 6. Mechanical Dave Newton 4.8 8. Electrical Bob Jones 1.9 Mechanical Dave Newton 2.9 2 Electrical Dave Newton 5.0 7. Electrical Bob Jones 4.2 9. Mechanical Bob Jones 4.7 8. Mechanical Bob Jones 4.5 4 Electrical Bob Jones 4.5 6. Electrical Dave Newton a. Develop the estimated regression equation to predict the repair time given the number of months since the last maintenance service, the type of repair, and the repairperson who performed the service. Assume that x2 = 1 if the type of repair is electrical and 23 =1 if Dave Newton performed the service. Enter negative value as negative number. Time = bo + bMonths + b2Type + b3 Person Round your answers to three decimal places. bo 1.847 b2
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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