what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C
what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
what is the lower control limit for the most appropriate control chart and the upper boundary value between Zone B and Zone C

Transcribed Image Text:• Each day a sample of 100 towels is randomly selected. The number of
towels found defective in the sample is recorded.
# Defects
Sample #
1
Sp=
23456789
total # defects
total # observations
P (1-P)
n
10
3248642
12
10
10
UCLp = p + Z
p(1-P)
n
Sample #
11
12
13
14
15
16
17
18
19
20
# Defects
13
11
14
11
9
16
12
15
18
18
Total = 204
LCLp = p-Z
P (1-P)
n
where Z is number of standard deviations,
usually Z = 3 unless told otherwise

Transcribed Image Text:Every 12 hours, 90 parts are randomly sampled and the # of defective parts (out of 90) is
recorded. Results from 16 samples follow:
Sample Defects
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
11
5
2
8
0
19
7
9
3
6
9
10
4
8
5
Total # of defects: 99
total # of observations=90*16 = 1440
What is the value of the statistic plotted for sample 2? [go out 4 decimal places
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