As products come off a large assembly line, they are inspected for quality. They are placed into one of three categories: pass, fail, or need additional inspection. The manager claims that 80 percent of the products pass the inspection, 5 percent fail, and 15 percent need additional inspection. In an effort to increase the passing rate, the machines are recalibrated. After this recalibration, a random sample of 100 products is selected. The manager would like to know if there is convincing evidence that the distribution has changed. What are the appropriate hypotheses?

Question

Revolt · Accepted Answer

cap h sub 0 :  p sub pass is equal to 0 point 8 0 ,  p sub fail is equal to 0 point 0 5 ,  p sub inspection is equal to 0 point 1 5

cap h sub A : Not all of the p sub i's are as stated.

Preparing to Conduct a Chi-Square Test for Goodness of Fit - Quiz Quiz

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