![subject](/tpl/images/cats/mat.png)
Mathematics, 13.04.2021 01:20 xXCoryxKenshinXx
Refer to the Johnson Filtration problem introduced in this section. 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 time in hours Months in Last service Type of person Repairperson
2.9 2 Electrical Dave Newton
3 6 Mechanical Dave Newton
4.8 8 Electrical Bob Jones
1.8 3 Mechanical Dave Newton
2.9 2 Electrical Dave Newton
4.9 7 Electrical Bob Jones
2.9 9 Mechanical Bob Jones
4.8 8 Mechanical Bob Jones
4.4 4 Electrical Bob Jones
4.5 6 Electrical Dave Newton
a. Ignore for now the months since the last maintenance service (x1) and the repairperson who performed the service. Develop the estimated simple linear regression equation to predict the repair time ( y) given the type of repair (x2). Recall that x2 = 0 if the type of repair is mechanical and 1 if the type of repair is electrical.
b. Does the equation that you developed in part (a) provide a good fit for the observed data? Explain.
c. Ignore for now the months since the last maintenance service and the type of repair associated with the machine. Develop the estimated simple linear regression equation to predict the repair time given the repairperson who performed the service. Let x3 = 0 if Bob Jones performed the service and x3 = 1 if Dave Newton performed the service.
d. Does the equation that you developed in part (c) provide a good fit for the observed data? Explain.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:10
How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:00
Look at the figure xyz in the coordinate plane. find the perimeter of the figure rounded to the nearest tenth.
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
Refer to the Johnson Filtration problem introduced in this section. Suppose that in addition to info...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 27.07.2019 15:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 27.07.2019 15:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2019 15:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.07.2019 15:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 27.07.2019 15:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.07.2019 15:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.07.2019 15:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.07.2019 15:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2019 15:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2019 15:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2019 15:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.07.2019 15:00