Question: True or False a) ANOVA tests the null hypothesis that the sample means are all equal. b) A strong case for causation is made in

True or False

a) ANOVA tests the null hypothesis that the sample means are all equal.

b) A strong case for causation is made in an observational study.

c) In rejecting the null-hypothesis, one can conclude that all the means are different from each other

d) One-way ANOVA can be used only when there are fewer than five means to be compared.

e) The null hypothesis for the Levene’s test for homogeneity of variance is Ho: ? A 2 =? B 2 =? C 2 =

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