Exercise

# Comparing proportions

In a previous exercise, we generated a binary response outcome in the `Acupuncture`

dataset to indicate whether the percentage decrease from baseline in headache score at Month 12 is greater than 35%. Here we will test the null hypothesis that the group proportions for that binary outcome are equal to determine if there is a significant treatment effect on this binary endpoint.

We will also re-run the test with the tidy function. This will provide a simpler output. The `broom`

library and `Acupuncture`

dataset have been preloaded for this session.

Instructions

**100 XP**

- Use the
`prop.test()`

function to compare the`treatment.group`

proportions of`resp35.month12`

. - Use the
`tidy()`

function (`broom`

package) to store the results. - Display the treatment difference, i.e. the difference in proportions.