Download An Introduction to Categorical Data Analysis (Wiley Series by Alan Agresti PDF

By Alan Agresti

Praise for the 1st Edition
"This is an excellent textual content from which to coach specific info research, at numerous degrees. . . [t]his e-book should be very hugely recommended."
Short ebook Reviews
"Of nice curiosity to capability readers is the range of fields which are represented within the examples: health and wellbeing care, monetary, govt, product advertising and marketing, and activities, to call a few."
Journal of caliber Technology
"Alan Agresti has written one other great account of the research of express data."
—The Statistician
The use of statistical equipment for express facts is ever expanding in today's global. An advent to express info research, moment Edition offers an utilized creation to crucial equipment for reading specific info. This re-creation summarizes equipment that experience lengthy performed a well-known function in facts research, akin to chi-squared assessments, and likewise locations detailed emphasis on logistic regression and different modeling ideas for univariate and correlated multivariate specific responses.
This moment version features:* new chapters at the equipment for clustered info, with an emphasis on generalized estimating equations (GEE) and random results types* A unified viewpoint according to generalized linear types* An emphasis on logistic regression modeling* An appendix that demonstrates using SAS(r) for all equipment* An interesting old viewpoint at the improvement of the tools* really expert equipment for ordinal facts, small samples, multicategory info, and paired pairs* greater than a hundred analyses of actual info units and approximately three hundred exercises
Written in an utilized, nontechnical type, the ebook illustrates tools utilizing a wide selection of genuine info, together with scientific medical trials, drug use via young children, basketball taking pictures, horseshoe crab mating, environmental reviews, correlates of happiness, and masses more.
An creation to specific facts research, moment Edition is a useful instrument for social, behavioral, and biomedical scientists, in addition to researchers in public health and wellbeing, advertising and marketing, schooling, organic and agricultural sciences, and commercial quality controls.

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Extra info for An Introduction to Categorical Data Analysis (Wiley Series in Probability and Statistics)

Sample text

To illustrate, suppose a clinical trial to evaluate a new treatment has nine successes in the first 10 trials. 05. 05. 05. 982). 086). However, it works poorly to use the sample proportion as the midpoint of the confidence interval when the parameter may fall near the boundary values of 0 or 1. 96 π0 (1 − π0 )/n for π0 . 18). html. 3) with the estimated standard error. 00). 1 1A. Agresti and B. Coull, Am. , 52: 119–126, 1998. 4 MORE ON STATISTICAL INFERENCE FOR DISCRETE DATA 11 MORE ON STATISTICAL INFERENCE FOR DISCRETE DATA We have just seen how to construct a confidence interval for a proportion using an estimated standard error or by inverting results of a significance test using the null standard error.

D. Hospital location (London, Boston, Madison, Rochester, Toronto). e. Favorite beverage (beer, juice, milk, soft drink, wine, other). f. How often feel depressed (never, occasionally, often, always). 3 Each of 100 multiple-choice questions on an exam has four possible answers but one correct response. For each question, a student randomly selects one response as the answer. PROBLEMS 17 a. Specify the distribution of the student’s number of correct answers on the exam. b. Based on the mean and standard deviation of that distribution, would it be surprising if the student made at least 50 correct responses?

25 for the odds ratio is merely a matter of how we label the rows and columns. The odds ratio does not change value when the table orientation reverses so that the rows become the columns and the columns become the rows. The same value occurs when we treat the columns as the response variable and the rows as the explanatory variable, or the rows as the response variable and the columns as the explanatory variable. Thus, it is unnecessary to identify one classification as a response variable in order to estimate θ.

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