Mathematics, 06.11.2020 17:10, drunkelmo04

A manufacturer receives parts from two suppliers. An SRS of 400 parts from supplier 1 finds 20 defective. An SRS of 200 parts from supplier 2 finds 20 defective. Let p1 and p2 be the proportion of all parts from suppliers 1 and 2, respectively, that are defective. What is the pooled sample proportion of defective parts from both suppliers

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A manufacturer receives parts from two suppliers. An SRS of 400 parts from supplier 1 finds 20 defec...