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What's on the worksheet
- In past years 20% of the customers at a made-up waffle restaurant have added strawberries to their order.
- At a made-up match factory, 12% of the matches fail to light on the first strike.
- In a heat test, 12% of the asphalt shingles made by a made-up roofing company curl.
- For years, 40% of the ink refills that a made-up ballpoint-pen company sells have been blue.
- On a made-up garlic farm, 20% of the cloves planted each fall fail to sprout.
- On a made-up vegetable farm, 25% of the carrots grow forked (split into two or more roots).
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Power and what raises it: 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