Question

How do you express the confidence interval `0.111 < p < 0.333` in the form `p +- E`?

Answer 1

The midpoint of the interval is `p`

Explanation:

`p=(0.111+0.333)/2=0.222`

Next, the error term E is the distance from `p` to the end of the interval.

`E=0.333-0.222=0.111`

Finally, write the final form:

`p+-E=0.222+-0.111`

hope that helped