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Exercise 29

Avg difficulty 3.0

Light and exam performance. A study is designed to test the effect of light level on exam performance of students. The researcher believes that light levels might have different effects on males and females, so wants to make sure both are equally represented in each treatment. The treatments are fluorescent overhead lighting, yellow overhead lighting, no overhead lighting (only desk lamps).

  1. What is the response variable?

  2. What is the explanatory variable? What are its levels?

  3. What is the blocking variable? What are its levels?

Diez, Barr & Çetinkaya-Rundel, OpenIntro Statistics, Introduction to data, End-of-Chapter Exercises, Exercise 29

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Adapted from OpenIntro Statistics © 2019 David Diez, Mine Çetinkaya-Rundel & Christopher D. Barr. Licensed under CC BY-SA 3.0. Source: OpenIntro Statistics. Imported at revision fee2509.