Repair Time in HoursMonths Since Last ServiceType of RepairRepairperson2.92ElectricalDonna Newton3.06MechanicalDonna Newton4.88ElectricalBob Jones1.83MechanicalDonna Newton2.92ElectricalDonna Newton4.97ElectricalBob Jones4.29MechanicalBob Jones4.88MechanicalBob Jones4.44ElectricalBob Jones4.56ElectricalDonna Newton2.92ElectricalDonna Newton3.06MechanicalDonna Newton4.88MechanicalDonna Newton1.83MechanicalDonna Newton2.92ElectricalDonna Newton4.97ElectricalBob Jones4.29ElectricalBob Jones4.88MechanicalBob Jones4.44ElectricalBob Jones4.56ElectricalDonna Newton Develop the simple linear regression equation to predict repair time given the number of months since the last maintenance service, and use the results to test the hypothesis that no relationship exists between repair time and the number of months since the last maintenance service at the 0.05 level of significance. What is the interpretation of this relationship? Suppose that excel is not working and all you have got is the estimated coefficient and its standard error, how would you test the significance of the independent variable number of months since the last maintenance service at the 0.05 level. Show calculations. What does the coefficient of determination tell you about this model?

Generally, the linear equation consists of a straight line equation. In the liner equation, there is…

Answered: epair Time in Hours Months Since Last…

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter3: Straight Lines And Linear Functions

Section3.3: Modeling Data With Linear Functions

Problem 22E

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Repair Time in Hours	Months Since Last Service	Type of Repair	Repairperson
2.9	2	Electrical	Donna Newton
3.0	6	Mechanical	Donna Newton
4.8	8	Electrical	Bob Jones
1.8	3	Mechanical	Donna Newton
2.9	2	Electrical	Donna Newton
4.9	7	Electrical	Bob Jones
4.2	9	Mechanical	Bob Jones
4.8	8	Mechanical	Bob Jones
4.4	4	Electrical	Bob Jones
4.5	6	Electrical	Donna Newton
2.9	2	Electrical	Donna Newton
3.0	6	Mechanical	Donna Newton
4.8	8	Mechanical	Donna Newton
1.8	3	Mechanical	Donna Newton
2.9	2	Electrical	Donna Newton
4.9	7	Electrical	Bob Jones
4.2	9	Electrical	Bob Jones
4.8	8	Mechanical	Bob Jones
4.4	4	Electrical	Bob Jones
4.5	6	Electrical	Donna Newton

Develop the simple linear regression equation to predict repair time given the number of months since the last maintenance service, and use the results to test the hypothesis that no relationship exists between repair time and the number of months since the last maintenance service at the 0.05 level of significance. What is the interpretation of this relationship? Suppose that excel is not working and all you have got is the estimated coefficient and its standard error, how would you test the significance of the independent variable number of months since the last maintenance service at the 0.05 level. Show calculations. What does the coefficient of determination tell you about this model?

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