AP Statistics 2 Proportion Inference Examples

AP Statistics 2 Proportion Inference Examples - AP...

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AP Statistics Examples of 2 Proportion Inference
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Example 1 Use duct tape to remove warts? An article describes that patients with warts were randomly assigned to liquid nitrogen freezing and duct tape treatment. The following data describe the results: Treatment sample size # successful Nitrogen 100 60 Duct Tape 104 88
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Ex 1 cont. Is there significant evidence that duct tape treatment is more successful at removing warts? Use alpha = 0.05
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U-try Olestra is a fat substitute approved by the FDA for use in snack foods. To investigate reports of gastrointestinal problems associated with olestra potato chips with regular potato chips the AMA conducted an experiment. Subjects were assigned randomly to either the olestra group of the regular chip group.
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U-try cont. Of the 529 individuals in the regular chip group, 93 experienced gastrointestinal symptoms, whereas 90 of the 563 individuals in the olestra group experienced symptoms.
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