The Zogby Poll. Here is the language used by the Zogby Poll to explain the accuracy of a recent poll: “The margin of error is plus or minus 1.2 percentage points. Zogby International’s sampling and weighting procedures also have been validated through its political polling: more than 95% of the firm’s polls have come within 1% of actual election-day outcomes.” What does Zogby mean by “95% of the firm’s polls have come within 1% of actual election-day outcomes”?

AppendixLO1