8. Inference for Categorical Data(COLON) Chi-Square

Introducing Statistics: Are My Results Unexpected? — Quiz

Test your understanding of introducing statistics: are my results unexpected? with 5 practice questions.

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Practice Questions

Question 1

In a chi-square setting, what does it usually mean when observed counts are very different from expected counts?

Question 2

What is the main purpose of a chi-square goodness-of-fit test?

Question 3

Which situation is the best example of a chi-square test for independence?

Question 4

Which formula gives the expected count for a cell in a two-way table when using a chi-square test?

Question 5

Why should expected counts generally be at least $5$ in chi-square procedures?