Computer Science, asked by pravdeep1773, 11 months ago

A machine produced 20 defective articles in a batch of 400. After overhauling it produced 10 defectives in a batch of 300. Test the claim on equality of proportions whether the machine is improved?

Answers

Answered by sridevi15

4

Answer:

the machine has improve because at first it produced 5 defective articles for every 100 articles

now it produces 3 or 4 defective products for every 100 articles

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