Calculate the rework percentage in this case.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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C. To improve the process by eliminating the scrap, determine is the new process avercee
Calculate the rework percentage in this case.
d. To improve the process by centring it, what would the process average be? Calculate the
percentage of rework and scrap in this case.
e. If the processing costs are very high, which of the above process improvements (in c or d) do
you recommend? Why?
Transcribed Image Text:C. To improve the process by eliminating the scrap, determine is the new process avercee Calculate the rework percentage in this case. d. To improve the process by centring it, what would the process average be? Calculate the percentage of rework and scrap in this case. e. If the processing costs are very high, which of the above process improvements (in c or d) do you recommend? Why?
2. An automobile company that manufactures engine piston rings found that the population mean
of the external diameter is 20.398 mm and the population standard deviation is 0.134 mm. If
the specification limits are 20.200 mm and 20.800 mm:
a. Determine the percent of rings to be reworked and the percent to be scrapped.
b. Find the process capability indices, C, and Cpk.
........ ....
Transcribed Image Text:2. An automobile company that manufactures engine piston rings found that the population mean of the external diameter is 20.398 mm and the population standard deviation is 0.134 mm. If the specification limits are 20.200 mm and 20.800 mm: a. Determine the percent of rings to be reworked and the percent to be scrapped. b. Find the process capability indices, C, and Cpk. ........ ....
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