can someone help me how to find the answer to this ???

Question

anonymous · Answer

Suppose a study estimated that 85% of the residents of a town (with an error range of ±12 percentage points at 95% confidence) favor building a new community center. Which of the following percentages of the town's residents may favor building a new community center?

   A. 99% 
   B. 69% 
   C. 59% 
   D. 79%

amistre64 · Answer

what is your confidence interval?

anonymous · Answer

95%??

anonymous · Answer

@amistre64 can you help please i have no idea how to do this

amistre64 · Answer

take the estimated, and work the margin of error

interval is equal to:  estimated +- error

anonymous · Answer

?? i lost

amistre64 · Answer

well, i cant read minds so youll have to be more explicit about what it is that lost you.

amistre64 · Answer

what was the estimated value?

what is the stated error?

amistre64 · Answer

i cant read it for you ....

anonymous · Answer

well its 85% were study and there is (+,-)12% error range and there is 95% confidence

amistre64 · Answer

so 85 +- 12  is the range of possibilities

amistre64 · Answer

anything that falls within that interval is a possibility, anything outside of it is not so likely

anonymous · Answer

so the range can be 73-97

amistre64 · Answer

yep

anonymous · Answer

so is that i can get the percentages of the town residents

anonymous · Answer

i just have to look for whats within the range??

amistre64 · Answer

yes

amistre64 · Answer

we are 95% sure that the true population parameter is someplace between 73 and 97,  thats what the confidence interval tell us

anonymous · Answer

so that is true the answer should be D)795 right?

amistre64 · Answer

correct :)

anonymous · Answer

oh ok see my teacher sucks and can not teach worth a crap

amistre64 · Answer

well lets not go there.

anonymous · Answer

oh no its true even some of the other teachers at my school think so too

amistre64 · Answer

good luck

anonymous · Answer

ok you for the help