Q4. Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table. a. Develop a p chart for 95% confidence (1.96 standard deviation)  b. Based on the plotted data points,what comments can you make

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Q4. Ten samples of 15 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table.

a. Develop a p chart for 95% confidence (1.96 standard deviation) 

b. Based on the plotted data points,what comments can you make

b.
3 A metal fabricator produces connecting
specification. A machine operator takes several sampl
determines the sample mean outer diameter to be 1.002 inches with a standard der |
.003 inch.
c. Is there benefit (or
a. Calculate the process capability index for this example.
b. What does this figure tell about the process?
4 Ten samples of 15 parts each were taken from an ongoing process to establish a p chor
for control. The samples and the number of defectives in each are shown in the followine
table:
you
SAMPLE
NUMBER OF
NUMBER OF
DEFECTS IN
DEFECTS IN
SAMPLE
SAMPLE
SAMPLE
SAMPLE
1
15
3.
blool
6.
bov!
15
15
1
7
15
15
8.
15
4
15
9.
15
15
1
10
15
a. Develop a p-chart for 95 percent confidence (1.96 standard deviations).
b. Based on the plotted data points, what comments can you make?
Output from a process contains 0.02 defective units. Defective units that go undetected into
final assemblies cost $25 each to replace. An inspection process, which would
remove all defectives, can be estahlishad to t
Transcribed Image Text:b. 3 A metal fabricator produces connecting specification. A machine operator takes several sampl determines the sample mean outer diameter to be 1.002 inches with a standard der | .003 inch. c. Is there benefit (or a. Calculate the process capability index for this example. b. What does this figure tell about the process? 4 Ten samples of 15 parts each were taken from an ongoing process to establish a p chor for control. The samples and the number of defectives in each are shown in the followine table: you SAMPLE NUMBER OF NUMBER OF DEFECTS IN DEFECTS IN SAMPLE SAMPLE SAMPLE SAMPLE 1 15 3. blool 6. bov! 15 15 1 7 15 15 8. 15 4 15 9. 15 15 1 10 15 a. Develop a p-chart for 95 percent confidence (1.96 standard deviations). b. Based on the plotted data points, what comments can you make? Output from a process contains 0.02 defective units. Defective units that go undetected into final assemblies cost $25 each to replace. An inspection process, which would remove all defectives, can be estahlishad to t
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