11.5 Comparison of the Chi-Square Tests
Choosing among goodness-of-fit, independence, and homogeneity by what was sampled and what is being claimed, plus the degrees of freedom each one needs.
5 exercises
11.5 Exercise 1
Which test do you use to decide whether an observed distribution is the same as an expected distribution?
11.5 Exercise 3
Which test would you use to decide whether two factors have a relationship?
11.5 Exercise 5
How are tests of independence similar to tests for homogeneity?
11.5 Exercise 7
For each word problem, use a solution sheet to solve the hypothesis test problem. Go to the reference for the chi-square solution sheet. Round expected frequency to two decimal places.
Is there a difference between the distribution of community college statistics students and the distribution of university statistics students in what technology they use on their homework? Of some randomly selected…
11.5 Exercise 9
- Explain why a goodness-of-fit test and a test of independence are generally right-tailed tests.
- If you did a left-tailed test, what would you be testing?
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