quick margin of error prob

sfspitfire23 · #1 $Old$ November 3rd, 2009, 06:01 PM

Newspaper surveys 1027 people. alpha=.05. whats the sampling margin of error?

matheagle · #2 $Old$ November 3rd, 2009, 06:45 PM

are you asking for

$1.96\sqrt{{\hat p\hat q\over n}}$ where the max occurs when we use p=q=.5?

sfspitfire23 · #3 $Old$ November 3rd, 2009, 07:06 PM

mmm, i think so. I'm guessing the confidence interval would be 95%?

heres the full Q-

The Washington post surveys 1027 randomly selected people. Determine the sampling margin of error (the accuracy) for this poll using $\alpha=.05$