Question

Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.658) E(Type an integer or a decimal.) (Type an integer or a decimal.)

Answer 1

Confidence interval = $\small \hat{p}$$\small \pm$ E

Margin of error, E = (0.658 - 0.630)/2 = 0.014

Sample proportion, $\small \hat{p}$ = (0.630 + 0.658)/2 = 0.644