A census report on the income of Americans says that with 95% confidence the median income of all U. S. households is $49,841 to $50,625. The point estimate (center of the interval) and margin of error for this interval are: a) Point estimate = $50,233: Margin of Error = $392
b) Point estimate = $50,625: Margin of Error = $392
c) Point estimate = $49,841: Margin of Error = $784
d) Point estimate = $50,233: Margin of Error = $784