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Exercise 31

Avg difficulty 3.0

True or false, Part I. Determine if the statements below are true or false. For each false statement, suggest an alternative wording to make it a true statement.

  1. The chi-square distribution, just like the normal distribution, has two parameters, mean and standard deviation.

  2. The chi-square distribution is always right skewed, regardless of the value of the degrees of freedom parameter.

  3. The chi-square statistic is always positive.

  4. As the degrees of freedom increases, the shape of the chi-square distribution becomes more skewed.

Diez, Barr & Çetinkaya-Rundel, OpenIntro Statistics, Inference for categorical data, End-of-Chapter Exercises, Exercise 31

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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.