Lec22 - Case 4. Analysis of Paired Data Analysis of Paired...

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IOE/Stat 265, Fall 2009 Lecture #22 Paired “t” Test 9-1 Differences in Means w/Variances Known 9-2 Differences in Means w/Variances Unknown P a i r e dt est 9-3 Paired t -Test 9-4 Differences Between Proportions 9-5 Ratios of Variances from Normal Distributions 1 ase 4 Analysis of Paired Data Case 4. Analysis of Paired Data ± All previous test procedures consider testing for a difference between 2 different samples. ± The analysis of paired data is used for experimental situations in which there is only py one set of n individuals or experimental objects, and 2 observations are made on ach individual or object In other words the each individual or object. In other words, the data are observed in pairs (2 measurements on the same part or individual) 2 na lys isofPa iredData Analysis of Paired Data - st and t- st: m individuals from population 1, n individuals ± Z test and t test: m individuals from population 1, n individuals from population 2. Two independent populations.
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This note was uploaded on 03/17/2010 for the course IOE 265 taught by Professor Garyherrin during the Fall '09 term at University of Michigan-Dearborn.

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Lec22 - Case 4. Analysis of Paired Data Analysis of Paired...

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