6. Statistical Inference
Chi Square — Quiz
Test your understanding of chi square with 5 practice questions.
Practice Questions
Question 1
When performing a Chi-square test, what is the minimum expected count for each cell to ensure the validity of the test?
Question 2
What is the primary goal of a Chi-square test of independence?
Question 3
Which of the following describes the alternative hypothesis ($H_1$) for a Chi-square test of independence?
Question 4
A researcher conducts a Chi-square goodness-of-fit test to see if the distribution of colors of cars in a parking lot matches a known distribution. If the calculated Chi-square test statistic is $12.5$ and the critical value at a $0.05$ significance level is $7.81$, what is the conclusion?
Question 5
What does a 'degree of freedom' represent in a Chi-square test?