Discussion:
Q: A production process uses five machines during each of two work shifts. The frequencies with which these machines need to be repaired are as follows:
|
|
Machine
|
|
Shift
|
1
|
2
|
3
|
4
|
5
|
|
1
|
12
|
6
|
12
|
14
|
6
|
|
2
|
23
|
4
|
9
|
16
|
5
|
Are the machine breakdowns independent of shift?