Management at Webster in Problem 16 is now concerned as to whether caulking tube

Management at Webster in Problem 16 is now concerned as to whether caulking tubes are being properly capped. If a significant proportion of the tubes are not being sealed Webster is placing its customers in a messy situation. Tubes are packaged in large boxes of 144. Several boxes are inspected and the following numbers of leaking tubes are found (see attached table).
Calculate p-chart three sigma control limits to assess whether the capping process is in statistical control.
1
3
8
6
15
52
5
9
4
16
03
3
10
9
17
24
4
11
2
18
65
2
12
6
19
26
4
13
5
20
17
2
14
1
72Sample
Tubes
Sample
Total

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