Lab08_Fall2011

Lab08_Fall2011 - EXST 7003 Lab 08 Fall 2011 EXST 7003 Lab 08 Decision Processing and One-Way ANOVA in SAS Week of October 31st to November 4th DUE

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EXST 7003 Lab 08 Fall 2011 EXST 7003, Lab 08: Decision Processing and One-Way ANOVA in SAS Week of: October 31 st to November 4 th DUE: November 7 th (section 1) or November 11 th (section 2 or 3) The Program In this lab we will investigate the analysis of paired data. Paired data can be analyzed by computing within-pair differences and the analyzing the sample of differences. Conceptually, the problem is transformed from one involving two samples, one from each of two populations, to an equivalent problem involving one sample from the population of all paired differences. Thus the procedures for analyzing data from a single population can be used. We will also analyze this paired data as though the samples were independent, not taking the paired nature of the data into account in our analysis. This will illustrate how failing to account for the paired nature of the data in an analysis can result in a loss of power and therefore lead to different conclusions. dm 'log;clear;output;clear' ; OPTIONS nodate nocenter pageno= 1 ls = 78 ps = 55 ; Title1 'EXST 7003 Lab 08' ; Title2 'Your name' ; The data represent pollution indices of air samples taken from two areas of a city. The two areas are labeled A and B data airpollution; input AREA $ INDEX ; datalines ; A 2.92 A 1.88 A 5.35 A 3.81 A 4.69 A 4.86 A 5.81 A 5.55 B 1.84 B 0.95 B 4.26 B 3.18 B 3.44 B 3.69 B 4.95 B 4.47 RUN ; 1
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EXST 7003 Lab 08 Fall 2011 Let μA and μB denote the mean pollution index levels for areas A and B, respectively. We are interested in determining whether the mean pollution index levels for the two areas of the city are
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This note was uploaded on 12/28/2011 for the course EXST 7003 taught by Professor Moser,e during the Fall '08 term at LSU.

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Lab08_Fall2011 - EXST 7003 Lab 08 Fall 2011 EXST 7003 Lab 08 Decision Processing and One-Way ANOVA in SAS Week of October 31st to November 4th DUE

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