Test Proportion from Summary Data

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How To... > Work with Statistical Objects > Test Hypotheses > Test Proportion from Summary Data

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Suppose you read poll results and you want to know whether they indicate that the proposition you are hoping will pass is really ahead. In this case, you have the summary data to enter into a test proportion object.

1.Create a new test by dragging one from the shelf or by choosing Object | New | Hypothesis Test.
2.From the test’s pop-up menu, choose Test Proportion.
3.Edit the values in blue to reflect your data.

The example shows that 55% of a random sample of 780 voters in favor of Proposition 1 is a lead that cannot be explained by chance.