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Unit: Inference for categorical data: Chi-square

AP Stats:

DAT (BI)

DAT‑3 (EU)

VAR (BI)

VAR‑1 (EU)

VAR‑8 (EU)

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Possible mastery points

About this unit

Learn to test how well sample counts of a categorical variable fit some hypothesized distribution, or, if the distribution of a categorical variable is similar or not across multiple groups.

Chi-square test for goodness of fit

AP Stats:

DAT (BI)

DAT‑3 (EU)

DAT‑3.I (LO)

DAT‑3.I.1 (EK)

DAT‑3.J (LO)

DAT‑3.J.1 (EK)

DAT‑3.J.2 (EK)

VAR (BI)

VAR‑1 (EU)

VAR‑1.J (LO)

VAR‑1.J.1 (EK)

VAR‑8 (EU)

VAR‑8.A (LO)

VAR‑8.A.1 (EK)

VAR‑8.A.2 (EK)

VAR‑8.A.3 (EK)

VAR‑8.B (LO)

VAR‑8.B.1 (EK)

VAR‑8.C (LO)

VAR‑8.C.1 (EK)

VAR‑8.D (LO)

VAR‑8.D.1 (EK)

VAR‑8.E (LO)

VAR‑8.E.1 (EK)

VAR‑8.F (LO)

VAR‑8.F.1 (EK)

VAR‑8.F.2 (EK)

VAR‑8.G (LO)

VAR‑8.G.1 (EK)

Learn

Practice

Expected counts in a goodness-of-fit testGet 3 of 4 questions to level up!
Conditions for a goodness-of-fit testGet 3 of 4 questions to level up!
Test statistic and P-value in a goodness-of-fit testGet 3 of 4 questions to level up!
Conclusions in a goodness-of-fit testGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 320 Mastery points

Chi square tests for relationships (homogeneity or independence)

AP Stats:

DAT (BI)

DAT‑3 (EU)

DAT‑3.I (LO)

DAT‑3.I.1 (EK)

DAT‑3.J (LO)

DAT‑3.J.1 (EK)

DAT‑3.K (LO)

DAT‑3.K.1 (EK)

DAT‑3.L (LO)

DAT‑3.L.1 (EK)

VAR (BI)

VAR‑8 (EU)

VAR‑8.H (LO)

VAR‑8.H.1 (EK)

VAR‑8.I (LO)

VAR‑8.I.1 (EK)

VAR‑8.I.2 (EK)

VAR‑8.J (LO)

VAR‑8.J.1 (EK)

VAR‑8.J.2 (EK)

VAR‑8.K (LO)

VAR‑8.K.1 (EK)

VAR‑8.L (LO)

VAR‑8.L.1 (EK)

VAR‑8.M (LO)

VAR‑8.M.1 (EK)

VAR‑8.M.2 (EK)

Learn

Practice

Expected counts in chi-squared tests with two-way tablesGet 3 of 4 questions to level up!
Test statistic and P-value in chi-square tests with two-way tablesGet 3 of 4 questions to level up!
Making conclusions in chi-square tests for two-way tablesGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 240 Mastery points

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Unit test

Level up on all the skills in this unit and collect up to 700 Mastery points!

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Unit: Inference for categorical data: Chi-square

Unit: Inference for categorical data: Chi-square

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About this unit

Chi-square test for goodness of fit

Learn

Practice

Quiz 1

Chi square tests for relationships (homogeneity or independence)

Learn

Practice

Quiz 2

Unit test

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