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Decide whether or not the conditions and assumptions for inference with the two-proportion z-test are satisfied....

Decide whether or not the conditions and assumptions for inference with the two-proportion z-test are satisfied. Explain your answer.

A researcher wished to test the claim that the rate of defectives among the computers of two different manufacturers is the same. She selected two independent random samples and found that 1.5% of 400 computers from manufacturer A were defective and 3.5% of 200 computers from manufacturer B were defective.

Please explain what the conditions and assumptions for inference with the two-proportion z-test are and how they are satisfied or not.

Math   Statistics-And-Probability   
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