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1 Chapter 12 Inferences for Population Proportions.

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Presentation on theme: "1 Chapter 12 Inferences for Population Proportions."— Presentation transcript:

1 1 Chapter 12 Inferences for Population Proportions

2 2 Confidence Intervals for One Population Proportion

3 3 Population Proportion and Sample Proportion Consider a population in which each member either has or does not have a specified attribute. Then we use the following notation and terminology. Population proportion, p: The proportion (percentage) of the entire population that has the specified attribute. Sample proportion, : The proportion (percentage) of a sample from the population that has the specified attribute.

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6 6 Hypothesis Tests for One Population Proportion

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9 9 Inferences for Two Population Proportions

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