Question: For the data in Table 10.1, assume normality and that the groups have equal variances. As already illustrated, the hypothesis of equal means is not

For the data in Table 10.1, assume normality and that the groups have equal variances. As already illustrated, the hypothesis of equal means is not rejected. If the hypothesis of equal means is true, an estimate of the assumed common variance is MSBG = .12, as already explained.

Describe a reason why you would prefer to estimate the common variance with MSWG rather than MSBG.

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