AP Statistics The Chi-Square Distribution – The Chi-Square Goodness of Fit Test

AP Statistics
Unit 8: Inference for Categorical Data: Chi-Square
Notes 1 – The Chi-Square Goodness of Fit Test

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AP Stat CED Topics Covered:
📚 VAR-1.J Identify questions suggested by variation between observed and expected counts in categorical data.
📚 VAR-8.A Describe chi-square distributions.
📚 VAR-8.B Identify the null and alternative hypotheses in a test for a distribution of proportions in a set of categorical data.
📚 VAR-8.C Identify an appropriate testing method for a distribution of proportions in a set of categorical data.
📚 VAR-8.D Calculate expected counts for the chi-square test for goodness of fit.
📚 VAR-8.E Verify the conditions for making statistical inferences when testing goodness of fit for a chi-square distribution.
📚 VAR-8.F Calculate the appropriate statistic for the chi-square test for goodness of fit.
📚 VAR-8.G Determine the p-value for chi-square test for goodness of fit significance test.
📚 DAT-3.I Interpret the p-value for the chi-square test for goodness of fit.
📚 DAT-3.J Justify a claim about the population based on the results of a chi-square test for goodness of fit.

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