Below is the number of defective items from a production line over twenty consecutive morning shifts.
|
Day
|
Nonconformances
|
Day
|
Nonconformances
|
|
1
|
26
|
11
|
22
|
|
2
|
27
|
12
|
26
|
|
3
|
23
|
13
|
21
|
|
4
|
21
|
14
|
22
|
|
5
|
26
|
15
|
19
|
|
6
|
20
|
16
|
17
|
|
7
|
35
|
17
|
21
|
|
8
|
30
|
18
|
18
|
|
9
|
21
|
19
|
16
|
|
10
|
25
|
20
|
17
|
Referring to table above, a c chart is to be constructed for the number of defective items. What is the lower control limit? Round your answer to the nearest hundredth.
A.) 8.37
B.) 36.93
C.) 16.72
D.) 22.65