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12 March, 13:46

Which of the following is not a required assumption for the analysis of variance?

a. The random variable of interest for each population has a normal probability distribution.

b. Populations under consideration have equal means.

c. At least 2 populations are under consideration.

d. The variance associated with the random variable must be the same for all populations.

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  1. 12 March, 14:05
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    B. Population under consideration have equal means.

    Explanation:

    ANOVA (analysis of variance) is a statistical technique for determining the existence of differences among several population means. ANOVA is not used to show that variances are different (that is a different test); it is used to show that means are different
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