From a sample of 35 presidential elections - 19 of those have been Republican (R) victories - and 16 have been Democrat (D) victories.
- I need to know how to construction a 95% confidence interval about the proportion of R victories.
- Using the same data - I'm trying to construct a null hypothesis to show "rejection of the null hypothesis that the true proportion of R victories is greater than what would be produced by flipping a fair coin. So what is the best option for the null hypothesis?
- What is the rejection region?
- What is the test statistic?
- Do we reject or fail to reject the null hypothesis?
All of the above is at 95% confidence level.