Question: Without using a confidence interval or hypothesis test, does it appear that all groups differ significantly from each other? Explain. A consumer organization studied the

Without using a confidence interval or hypothesis

Without using a confidence interval or hypothesis test, does it appear that all groups differ significantly from each other? Explain.

A consumer organization studied the effect of age of au- tomobile owner on cash offer for a used car (in hundreds of dollars). The age groups were "Young" (Y), Middle" (M), and "Old" (O). Summary statistics follow: M M sample mean sample std. dev sample size 0 Y 27.75 21.42 21.50 1.29 1.68 1.73 12 12 12 Overall 23.56 3.38 36

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