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homework3 - Stat 665(Spring 2011 Kaizar Homework 3 Due at...

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Stat 665 (Spring 2011) Kaizar Homework 3 Due at the beginning of class, Monday April 25 . Aim of Homework : To think about different kinds of categorical data. To apply different measures of association in two-way tables. To perform tests of independence. Reading : An Introduction to Categorical Data Analysis, 2nd edition: Sections 2.7. Exercises : 40 points total 1. (16 points) The 2007-08 Ohio State Men’s Basketball team included two players: Jamar Butler and Kosta Koufos. NBA scouts were considering these players for recruitment, and so they are considering their scoring abilities. The following table contains data regarding the players’ scores: Three-Pointers Score Yes No Jamar 104 167 Kosta 22 41 Other Field Goals Score Yes No Jamar 82 5 Kosta 68 32 Here’s some R code: bbplayers=array(c(104, (271-104), 82, (87-82), 22, 63-22, 68, 100-68), dim=c(2,2,2), dimnames=list(made=c("Yes", "No"), type=c("Three", "Other"), player=c("Jamar", "Kosta"))) (a) Find the marginal 2x2 table of player vs. score. (b) Find the odds ratio of player and score in all three tables (the two conditional tables, and the marginal table).

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homework3 - Stat 665(Spring 2011 Kaizar Homework 3 Due at...

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