Assignment:
Twenty samples have been taken from a production run. Given the following data, construct a 3-sigma p-chart and evaluate whether the process is in control.
|
Sample
Number
|
Sample
Size
|
Number of
Defectives
|
|
1
|
200
|
38
|
|
2
|
200
|
26
|
|
3
|
200
|
37
|
|
4
|
200
|
42
|
|
5
|
200
|
48
|
|
6
|
200
|
45
|
|
7
|
200
|
38
|
|
8
|
200
|
42
|
|
9
|
200
|
46
|
|
10
|
200
|
45
|
|
11
|
200
|
32
|
|
12
|
200
|
37
|
|
13
|
200
|
38
|
|
14
|
200
|
37
|
|
15
|
200
|
36
|
|
16
|
200
|
39
|
|
17
|
200
|
50
|
|
18
|
200
|
39
|
|
19
|
200
|
38
|
|
20
|
200
|
36
|
Provide complete and step by step solution for the question and show calculations and use formulas.