tain cancer among men aged 70 and over occurs at a rate of 1 in 150. A blood test will be positive 99% of the time if the cancer is present, but i

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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.