trying to find the answers to the x's 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 performed the service. The revised data follow.Repair TimeMonths Sincein HoursLast ServiceType of RepairRepairperson3.0ElectricalDave Newton2.9MechanicalDave Newton4.88ElectricalBob Jones1.7MechanicalDave Newton3.02ElectricalDave Newton4.87ElectricalBob Jones4.1MechanicalBob Jones4.8MechanicalBob Jones4.5ElectricalBob Jones4.5ElectricalDave Newtona. 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 2 = 1 if the type of repair is electrical and 3 = 1 ifDave Newton performed the service. Enter negative value as negative number.Time = bo + b, Months + b Type + bg PersonRound your answers to three decimal places.bo1.736.297b21.154b3-0.568 8b. At the 0.05 level of significance, test whether the estimated regression equation developed in part (a) represents a significant relationship between the independent variables and the dependent variable.Compute F test statistic (to 2 decimals).14.27Use Table 4 from Appendix B to determine the p-value.The p-value is less than 0.01What is your conclusion?The overall model is statistically significant vc. Is the addition of the independent variable a3, the repairperson who performed the service, statistically significant? Use a = 0.05.Compute the t test statistic for the significance of 13 (to 2 decimals). Enter negative value as negative number.-1.27Use Table 2 from Appendix B to determine the p-value.The p-value is greater than 0.10What is your conclusion?The addition of Person is notstatistically significant.What explanation can you give for the results observed?Person is highly correlated with months since last service v, so once the effect of that is accounted for the addition of person will not add much.|이 0| 0 |0|

From the given information, Time Months x2 x3 3 2 1 1 2.9 6 0 1 4.8 8 1 0 1.7 3 0 1 3…

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 vas serviced and whether a mechanical or an electrical rep the managers obtained a list shoving which repairperson performed the service. The revised data follow. Repair Time Honths Since in Hours Last Service Type of Repair Repairperson 3.0 Electrical Dave Nenton 2.9 Mechanical Dave Nenton 4.8 Electrical Bob Jones 1.7 Mechanical Dave Nenton 3.0 Electrical Dave Nenton 4.8 Electrical Bob Jones 4.1 Mechanical Bob Jones 4.8 Mechanical Bob Jones 4.5 Electrical Bob Jones 4.5 Electrical Dave Nenton

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 vas serviced and whether a mechanical or an electrical rep the managers obtained a list shoving which repairperson performed the service. The revised data follow. Repair Time Honths Since in Hours Last Service Type of Repair Repairperson 3.0 Electrical Dave Nenton 2.9 Mechanical Dave Nenton 4.8 Electrical Bob Jones 1.7 Mechanical Dave Nenton 3.0 Electrical Dave Nenton 4.8 Electrical Bob Jones 4.1 Mechanical Bob Jones 4.8 Mechanical Bob Jones 4.5 Electrical Bob Jones 4.5 Electrical Dave Nenton

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 91E

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