Chapter 10 χ2 tests for goodness of fit and independence
- Prof. Tesler
Math 186 Winter 2018
- Prof. Tesler
- Ch. 10: χ2 goodness of fit tests
Math 186 / Winter 2018 1 / 26
Chapter 10 2 tests for goodness of fit and independence Prof. - - PowerPoint PPT Presentation
Chapter 10 2 tests for goodness of fit and independence Prof. Tesler Math 186 Winter 2018 Ch. 10: 2 goodness of fit tests Prof. Tesler Math 186 / Winter 2018 1 / 26 Multinomial test Consider a k -sided die with faces 1 , 2 , . . . , k .
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5 10 15 0.00 0.05 0.10 0.15 0.20 0.25 Supports H0 better Supports H1 better Observed !2 !2 pdf
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3 = 0.4700240;
2
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2 4 6 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Comparison of normal and Poisson distributions x pdf Normal: µ=2, !=sqrt(2) Poisson: "=2 5 10 15 0.05 0.1 0.15 0.2 Comparison of normal and Poisson distributions x pdf Normal: µ=5, !=sqrt(5) Poisson: "=5 20 40 60 80 100 0.02 0.04 0.06 0.08 Comparison of normal and Poisson distributions x pdf Normal: !=30, !=sqrt(30) Poisson: "=30
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2 = 41.6056
2
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2
2 = 1073.508
2
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