Concept explainers
In Example 8.1 (page 200) we discussed a research study by Guéguen and Jacob (2012) showing that waitresses received significantly larger tips when they were wearing red T-shirts compared to other colors. The actual study used a repeated-measures design in which waitresses in live different restaurants wore the same T-shirt in six different colors (red, blue, green, yellow, black, and while) on different days during a six-week period. Each waitress recorded the average lip received while wearing red and the average while wearing another color and computed the difference between the two scores. A similar study also found that tips were higher when waitresses wore red, with a mean difference of MD = 32 cents for each $10 of restaurant bill for a sample of n = 11 waitresses. If the difference scores had s2 = 539, are the data sufficient to decide that tips are significantly higher when waitresses wear red? Use a one-failed test with α = .01.
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Chapter 11 Solutions
Bundle: Essentials Of Statistics For The Behavioral Sciences, Loose-leaf Version, 9th + Ibm Spss Statistics Student Version 21.0 For Windows + Mindtap, 1 Term Printed Access Card, Enhanced
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- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
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