Construct the appropriate control chart

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Back Shoulder Sports manufacturer's collegiate footballs. Each day the company verifies the accuracy of the manufacturing process by taking a random sample of 250 footballs. The footballs are either labeled as acceptable or defective. The table below contains historical data of inspected samples taken when the manufacturing process was in control.

Sample Number

Sample Size

Footballs with Defects

1

250

7

2

250

5

3

250

19

4

250

10

5

250

11

6

250

8

7

250

12

8

250

9

9

250

13

10

250

18

11

250

5

12

250

16

13

250

4

14

250

11

15

250

6

a) Construct the appropriate control chart from the above data using a 3-standard deviation limit.

Reference no: EM131221796

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