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What's on the worksheet
- A transit researcher takes an independent random sample of tram riders in each of two large cities (made-up data).
- Cuckoos lay their eggs in the nests of reed warblers.
- A made-up education group compares two states.
- A made-up animal-rescue charity mails a year-end letter to 400 people who gave to it last year.
- A reporter for a made-up local news site studies the share of homes with a doorbell camera in two towns, A and B.
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The free lesson teaches it with worked examples and practice problems.
Test for a difference of proportions: the lesson ›More Chapter 8 worksheets: Inference for proportions: significance tests
- 8.1Comparing two treatments by re-randomizing
- 8.2Null and alternative hypotheses
- 8.3Test statistic
- 8.4p-values and the significance level
- 8.5Deciding and concluding from a p-value
- 8.6One sample test for a proportion
- 8.7Test for a difference of proportions
- 8.8Type I and Type II errors
- 8.9Power and what raises it
- 8.10Cautions about significance