Transportation Statistics and Microsimulation

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9Ch a p t e r ▪ Inferences Concerning Categorical Data 157

9.1 INTRODUCTION 157

9.2 TESTS AND CONFIDENCE INTERVALS FOR A

SINGLE PROPORTION 157

9.3 TESTS AND CONFIDENCE INTERVALS FOR TWO

PROPORTIONS 161

9.4 CHI-SQUARE TESTS CONCERNING MORE THAN

TWO POPULATION PROPORTIONS 163

9.4.1 Chi-Square Test for Univariate Categorical Data 163

9.4.2 Tests for Independence of Two Categorical

Variables 166

9.4.3 Tests for Homogeneity of Two or More

Populations 171

9.5 THE CHI-SQUARE GOODNESS-OF-FIT TEST FOR

CHECKING DISTRIBUTIONAL ASSUMPTIONS 174

9.6 CONCLUSIONS 175

HOMEWORK PROBLEMS 176

REFERENCES 177

1Ch a p t e r 0 ...