Question: Use the sample standard deviations given in Table 12.23 resulting from a singlefactor analysis of variance on four treatments to check the constant variance assumption.

Use the sample standard deviations given in Table 12.23 resulting from a singlefactor analysis of variance on four treatments to check the constant variance assumption. Is it reasonable to assume that each of the treatment groups has the same variance? Explain.

Treatment Sample SD 1234 33.56 22.63 36.88 27.17

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