asked this question, but the answer was wrong. Answered given was  lower limit -0.046  wrong answer Upper limit 0.126 wrong answer The proportions of defective parts produced by two machines were compared, and the following data were collected. Determine a 90% confidence interval for p1 - p2. (Give your answers correct to three decimal places.) Machine 1: n = 152; number of defective parts = 17 Machine 2: n = 140; number of defective parts = 10 Lower Limit   Upper Limit

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A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.