Question: Forty one small lots of experimental product were manufactured and tested
Forty-one small lots of experimental product were manufactured and tested for the occurrence of a particular indication that is an attribute in nature yet causes rejection of the part. Thirty-one lots were made using one particular processing method, and ten lots were made using a second processing metho d. Each lot was equally sampled (n = 32)) for the presence of this indication. In practice, optimal processing conditions show little or no occurrence of the indication. Method 1, involving the ten lots, was run before Method 2
Determine, at the 0.05 level of significance, whether there is a difference in the proportion of reject product between the two methods. (Save your answer for comparison with Exercise 11.72
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