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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Consider the following linear combinations of interest in a single-factor study involving four factor levels:

a. Which of the linear combinations are contrasts? State the coefficients for each of the contrasts.
b. Give an unbiased estimator for each of the linear combinations. Also give the estimated variance of each estimator assuming that ni =n.
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