Compute z-score to find the desired probability

Reference no: EM13127739

A certain question on a test is answered correctly by 25% of all respondents who have ever taken the test. Suppose you want to use the NAB to find the probability that, among the next 150 respondents, 48 or fewer will answer the question correctly. What is the z-score that you should look up in the z-table to find the desired probability?

Reference no: EM13127739

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