Question

Hi, can you help me answer this question please, thank you!

Answer 1

The given confidence interval is 70.4% < p < 80.2%.

Express the percentages as decimals

`0.704<p>Find the midpoint of the interval, which is the mean between the limits.</p>[tex]p=(0.704+0.802)/(2)=(1.506)/(2)=0.753`

Then, subtract the end of the interval with the mean value.

`E=0.802-0.753=0.049`

The error is 0.049, or 4.9%.

Once you have the error E, we can express the interval.

`\begin{gathered} p\pm ME\to75.3\pm4.9 \\ \end{gathered}`

Therefore, the interval is

`75.3\pm4.9_{}`