When making an inference on the difference between two population proportions, what is the difference between the approximate standard error used in a confidence interval and the standard error used as the denominator of the test statistic? Please explain.
Added by Mary L.
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To construct a confidence interval for the difference between the two proportions, we use an approximate standard error. This approximate standard error takes into account the sample proportions, sample sizes, and assumes that the sampling distribution of the Show more…
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