Evaluate the true magnitude of the problem

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Reference no: EM133017666

Assignment 1 - Quality Calculations

Problem 1 CPK: The specifications for a product are 6 mm +/- 0.1 mm. The process is known to operate at a mean of 6.05 with a standard deviation of 0.01 mm. What is the CPK for this process?

Problem 2 Defects: The housekeeping supervisor of a hotel has been concerned about the number defects in rooms recently cleaned. In order to evaluate the true magnitude of the problem the supervisor has selected a random sample of 20 rooms each over a ten-week period. The number of rooms with defects are as follows:

Week	Number of Defects
1	1
2	3
3	2
4	1
5	4
6	1
7	2

Week	Number of Defects

8	0
9	3
10	1

Determine the center line, the upper and lower control limits?

Attachment:- Quality Calculations.rar

Reference no: EM133017666

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