Question
Repair Time in Hours Months Since Last Service Type of Repair Repair Person 2.9 2 1 1 3.0 6 0 1 4.8 8 1 0
Repair Time in Hours | Months Since Last Service | Type of Repair | Repair Person |
2.9 | 2 | 1 | 1 |
3.0 | 6 | 0 | 1 |
4.8 | 8 | 1 | 0 |
1.8 | 3 | 0 | 1 |
2.9 | 2 | 1 | 1 |
4.9 | 7 | 1 | 0 |
4.2 | 9 | 0 | 0 |
4.8 | 8 | 0 | 0 |
4.4 | 4 | 1 | 0 |
4.5 | 6 | 1 | 1 |
Use R to solve this regression analysis problem a. Create regression models for the "Repair time in hours" as the dependent variable, and all seven combinations of one or more of the three independent variables - "Months since last service", "Type of repair" and "Repairperson"; which of those models are statistically significant at 0.05 level of significance? b. Which of those regression models would you recommend the company use to estimate repair time? Explain.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started