Express the confidence interval 67.9 % ± 5.9 % in the form of a trilinear inequality.

Question

Express the confidence interval  in the form of a trilinear inequality.

_%  %_

Answer 1

What is (67.9 - 5.9)% ? Find that and put it in the inequality below.

What is (67.9 + 5.9)% ? Find that and put it in the inequality below.

(67.9 - 5.9)% < p < (67.9 + 5.9)%

That's all you need to do! This is an exercise in knowing the two forms of presenting confidence intervals, either as compound inequalities or as intervals in parentheses/brackets (as you might have been working with already). I hope this helps!