In one manufacturing factory, 40 of 600 products were scrapped in one of the manufacturing methods...

In one manufacturing factory, 40 of 600 products were scrapped in one of the manufacturing methods due to various defects, and 30 of 500 products were scrapped in the other. Test whether there is a difference between the two methods in terms of the scrapped product ratio, 99% confidence level.

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orchestra answered 1 year ago

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