Calculate the margin of error of the proportion if p̂ = 0.25, z = 1.96 and n = 200.
+33654 z=1.96 corresponds to a 95% confidence interval, and according to http://en.wikipedia.org/wiki/Margin_of_error this means the margin of error is approximately 0.98/√n
+33654 z=1.96 corresponds to a 95% confidence interval, and according to http://en.wikipedia.org/wiki/Margin_of_error this means the margin of error is approximately 0.98/√n
