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Using the standard Wald confidence interval for a population proportion hypothesis test is a common mistake |
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| Authors: | Shitao Yang Ken Black |
| Abstract: | Employing a Wald confidence interval to test hypotheses about population proportions could lead to an increase in Type I or Type II errors unless the hypothesized value, p0, is used in computing its standard error rather than the sample proportion. |
| Keywords: | Teaching estimation hypothesis testing misuse of statistics teaching statistics |