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Question 6.9: Use the data in Table 6.2 to test the null hypothesis that t...

Use the data in Table 6.2 to test the null hypothesis that the proportions of pins that are too thin, OK, or too thick are the same for all the machines.

Expected values for Table 6.2
Too
Thin
OK Too
Thick
Total
Machine 1 15.84 96.48 7.68 120.00
Machine 2 26.40 160.80 12.8 200.00
Machine 3 13.20 80.40 6.4 100.00
Machine 4 10.56 64.32 5. 12 80.00
Total 66.00 402.00 32.00 500.00
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