Question

Express the confidence interval 15.8% ± 5.4% in interval form.Answer using decimals rounded to three places, not as percentages

Answer 1

Okay, here we have this:

Considering the provided confidence interval we are going to express it in interval form, so we obtain the following:

So let's first convert the interval from percent to decimals:

Confidence interval=15.8% ± 5.4%

Confidence interval=0.158 ± 0.054

And the interval form will be obtained by leaving the result using the lesser on the left side, and the result using the more on the right side:

Confidence interval=[0.158-0.054, 0.158+0.054]

Confidence interval=[0.104, 0.212]

Finally we obtain that the confidence interval in interval form is equal to [0.104, 0.212].