Sixty-three college men were asked what they thought was their ideal weight. A five-number summary of the responses (in pounds) follows. Median 176 Quartiles 155 200 Extremes 122 233 About what percent of the men gave a response that falls in the interval 155 to 176 pounds? % give an exact answer

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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.