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Answer: (0.63, 7.07)
Step-by-step explanation:
The confidence interval for population proportion is given by :-
Given : ;
Significance level :
Critical value :
Now, a 90% confidence interval for population proportion will be :-
Hence, a 90% confidence interval for population proportion = (0.63, 7.07)
we know is a right triangle, so one angle must be 90°, we also know is an isosceles, that means it has twin sides, and we also know that the hypotenuse or slanted side is 8, so the triangle must be a 45-45-90 triangle, Check the picture below.
