Inference for a Proportion: An Example of a Confidence Interval and a Hypothesis Test @jbstatistics

Uploaded May 2014 | Updated September 2026, 41 minutes ago

I work through an example of a confidence interval and a hypothesis test for a single proportion, using normal approximation methods (Z test and confidence interval).

The data on the proportion of male births is from:
Koshy et al. (2010). Parental smoking and increased likelihood of female births. Annals of Human Biology, 37(6): 789--800.

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