The clinical trial for a new drug results in a p-value of 0.045. What decision should the scientists make? A. We accept the alternative hypothesis that the drug does work. B. We reject the null hypothesis that the drug doesn't work. C. We accept the null hypothesis that the drug doesn't work. D. We reject the alternative hypothesis that the drug does work.

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Q: In a sample of 40 people 40% are black. Test the null hypothesis that the population proportion of…

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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.