Suppose a study estimated that 58% of the residents of a town (with an error range of +-8 percentage points at 95% confidence) favor expanding the park and recreation department. Which of the following percentages of the town's residents may favor expanding the park and recreation department?

A. 92%
B. 82%
C. 52%
D. 72%

Question

Suppose a study estimated that 58% of the residents of a town (with an error range of +-8 percentage points at 95% confidence) favor expanding the park and recreation department. Which of the following percentages of the town's residents may favor expanding the park and recreation department? 

A. 92%
B. 82%
C. 52%
D. 72%

phi · Answer

***58% of the residents of a town (with an error range of +-8 percentage points ***

I would figure out the lowest estimate and the highest estimate.  The answer choice should be between those 2 numbers.

hockeychick23 · Answer

so find the mean of 50 and 66?

phi · Answer

no.  when they say 58 + or - 8, they mean they are not sure of the answer, but think the answer is between 50 and 66

phi · Answer

only one of the choices is between 50 and 66
so that is a "possible" answer.

hockeychick23 · Answer

so then by default it makes the answer 52%?

phi · Answer

yes

hockeychick23 · Answer

Ok thanks!