A company claims that only 4% of their products are defective. A random sample of 320 products is selected from a shipment of 8000 products and the proportion of defects is computed. What might you conclude about the company's claim that only 4% of their products are defective?

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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.