Name: Jim Who is asking: Other Level: All
Question: Group # polled Margin of error A. 779 +/ 4% B. 315 +/ 7% C. 323 +/ 6% D. 254 +/ 9% Any help in solving this equation will be greatly appreciated. Hi Jim,It depends on the parameter you are estimating. We usually use margin of error for the estimation of a mean, so some "linear" operation will be suitable. I suggest to use weigted avarage:
overall margine error Multiply the answer of this expression by 100 in order to get percents (%). Cheers,Andrei
