Confidence Interval Wording - AllofE Solutions

The large-sample confidence interval formula for proportions is valid if np ≥ 15 and n(1-p) ≥ 15. Large-sample confidence intervals always contain the true parameter value, whereas small-sample confidence intervals may not. We form small-sample confidence intervals by using the large-sample formula after adding 4 successes and 4 failures. ................
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