For a binomial test with p = 1/2 and n = 36,the z-score for X = 21 is z = +1.00.

Name: For a binomial test with p = 1/2 and n = 36,the z-score for X = 21 is z = +1.00.
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Question

For a binomial test with p = 1/2 and n = 36,the z-score for X = 21 is z = +1.00.​

Quizplus · Accepted Answer

The z-score for X = 21 is z = +1.00 because the mean of the binomial distribution is np = 36 * 1/2 = 18, and the standard deviation is sqrt(np(1-p)) = sqrt(36 * 1/2 * 1/2) = 3.6. Therefore, the z-score is (21 - 18) / 3.6 = +1.00.

For a Binomial Test with P = 1/2 and N