# Exercise 13 described an experiment to investigate mean income of company presidents from five…

Exercise 13 described an experiment to investigate mean income of company presidents from five…
Exercise 13 described an experiment to investigate mean income of company presidents from five geographic areas Option.   a Option.  Estimate the proportion of the population variance in the dependent variable that is accounted for by the five treatments levels Option.   b Option.  Use the Scheffé statistic to test the following null hypotheses: 1 = 1 – 4 0, 2 = 3 – 4 = 0, and 3 = (2 – 5) – (1 + 4) = 0 Option.  Let  =  Option. 05 Option.   c Option.  Use Hedges’s g statistic to determine the effect size of the contrasts Option.  Interpret g for those tests that were significant Option.   d Option.  Construct confidence intervals for each of the contrasts and locate the confidence intervals on the real number line Option.   May 17 2022 10:51 AM

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