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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the chi-square goodness of fit test used for?
💡 Hint: Think about prediction vs. reality.
Question 2
Easy
What does Oi stand for?
💡 Hint: Remember the counts you see in your data.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What statistical test is used to measure goodness of fit?
- T-test
- Chi-Square Test
- ANOVA
💡 Hint: It pertains to observing vs. expecting.
Question 2
True or False: Observed frequencies can be greater than expected frequencies.
- True
- False
💡 Hint: Consider the flexibility of data.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You randomly survey 100 people about their favorite fruit, finding the following observed frequencies: [30, 25, 20, 15, 10]. Given you expected each fruit to be favored equally, calculate the chi-square statistic and interpret your findings (consider each category is 20).
💡 Hint: Follow your formula to compute the deviations.
Question 2
A company claims their paint colors are distributed evenly across five categories. Their observed sales numbers are [50, 30, 10, 5, 5]. What’s the chi-square statistic? Does it support their claim?
💡 Hint: Calculate what each deviation says about the actual sales numbers.
Challenge and get performance evaluation