Repair t months since last service type of reprepair person
2.9
2 electrical dave newton
6
9 electrical dave newton
6.8
10 electrical bob jones
4.8
6 mechanicaldave newton
4.9
4 electrical dave newton
0.9
9 electrical bob jones
5.2
10 electrical bob jones
4.8
8 mechanicalbob jones
6.4
6 mechanicalbob jones
8.5
10 mechanicaldave newton
a
Develop the estmated linear regression equaton to predict repair tme only the repair person who performed service and the months since the last maintenance service
b
does the equaton that you developed in part(a) provide a good fit for the observed data. Explain
c
develop the estmated linear regression equaton to predict repair tme including the months since the last maintenance service, the repair person who performed the se
d
does the equaton that you developed in part(c) provide a good fit for the observed data. Explain
nce service
med the service(bob Jones and Dave Newton) and the type of repair (mechanical and elecrtrical)
