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- Due on 19 Jan, 2015 12:38:00
- Asked On 17 Jan, 2015 01:27:33
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**Jamescool****Rating :**0**Grade :****No Rating****Questions :**16**Solutions :**1**Blog :**0**Earned :**$36.00

1.A metal fabricator produces connecting rods with an outer diameter that has a 1.028±0.04 inch specification. A machine operator takes several sample measurements over time and determines the sample mean outer diameter to be 1.012 inches with a standard deviation of 0.007 inch.

2. 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:

SAMPLE n NUMBER OF

DEFECTS IN

SAMPLE SAMPLE n NUMBER OF

DEFECTS IN

SAMPLE

1 15 3 6 15 0

2 15 0 7 15 2

3 15 1 8 15 3

4 15 3 9 15 2

5 15 2 10 15 2

3.

A shirt manufacturer buys cloth by the 100 yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g., loose threads and tears) the following data was collected from a sample provided by the supplier.

SAMPLE 1 2 3 4 5 6 7 8 9 10

IRREGULARITIES 6 5 6 8 6 4 7 7 7 5

(b) Suppose the next five rolls from the supplier had nine, two, five, seven and six irregularities. What is the UCL?

(c) Is the supplier process under control?

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Solution posted by

**ExpertT****Rating :**103**Grade :****A+****Questions :**0**Solutions :**963**Blog :**0**Earned :**$50704.39

Calculate the process capability index for this example. 1.143 Explanation: =1.143 2. 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: SAMPLE n NUMBER OFDEFECT...

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