'Expected cell counts' diaporamas de présentation

Chapter 14 Tests of Hypotheses Based on Count Data

Chapter 14 Tests of Hypotheses Based on Count Data. 14.2 Tests concerning proportions (large samples) 14.3 Differences between proportions 14.4 The analysis of an r x c table. 14.2 Tests concerning proportions (large samples). np>5; n(1-p)>5 n independent trials; X=# of successes

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Chapter 14 Tests of Hypotheses Based on Count Data

Chapter 14 Tests of Hypotheses Based on Count Data. 14.2 Tests concerning proportions (large samples) 14.3 Differences between proportions 14.4 The analysis of an r x c table. 14.2 Tests concerning proportions (large samples). np>5; n(1-p)>5 n independent trials; X=# of successes

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Inference for two-way tables

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AP Statistics Topic 7

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Chi-Squared Test of Homogeneity

Chi-Squared Test of Homogeneity. Are different populations the same across some characteristic?. c 2 test for homogeneity. Used with a single categorical variable from two (or more) independent samples Used to see if the two populations are the same ( homogeneous )

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9.1 Inference for Two-Way Tables

9.1 Inference for Two-Way Tables. Two-way tables Expected cell counts The chi-square statistic The chi-square distributions The chi-square test Computations Computing conditional distributions Models for two-way tables. Perils of aggregation.

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11/12 9. Inference for Two-Way Tables

11/12 9. Inference for Two-Way Tables. Cocaine addiction. Cocaine produces short-term feelings of physical and mental well being. To maintain the effect, the drug may have to be taken more frequently and at higher doses. After stopping use, users will feel tired, sleepy, and depressed.

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Statistics 303

Statistics 303. Chapter 9 Two-Way Tables. Relationships Between Two Categorical Variables. Relationships between two categorical variables Depending on the situation, one of the variables is the explanatory variable and the other is the response variable.

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Statistics 303

Statistics 303. Chapter 9 Two-Way Tables. Relationships Between Two Categorical Variables. Relationships between two categorical variables Depending on the situation, one of the variables is the explanatory variable and the other is the response variable.

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Sociology 601 Class12: October 8, 2009

Sociology 601 Class12: October 8, 2009. The Chi-Squared Test (8.2 ) expected frequencies calculating Chi-square finding p When (not) to use Chi-squared tests (8.3) chi-squared residuals. 8.2 Chi-squared statistical significance test for contingency tables. support tax reform?

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AP Statistics

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13.2 Chi-Square Test for Homogeneity & Independence

13.2 Chi-Square Test for Homogeneity & Independence. AP Statistics. Homogeneity.

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Chi-Square Tests

Chi-Square Tests. Chapter 13. The chi-square test for Goodness of Fit allows us to determine whether a specified population distribution seems valid.

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Lecture 18 Section 8.3

Lecture 18 Section 8.3. Objectives: Testing concerning hypotheses about a categorical population Chi-squared distributions Tests based on univariate categorical data Testing for homogeneity of several categorical variables. Goodness-of-fit Test.

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