Use the following
Two sets of sample data, A and B, are given. Without doing any calculations, indicate in which set of sample data, A or B, there is likely to be stronger evidence of a difference in the population means. Give a brief reason, comparing means and variability, for your answer.
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Question

Use the following 
Two sets of sample data, A and B, are given. Without doing any calculations, indicate in which set of sample data, A or B, there is likely to be stronger evidence of a difference in the population means. Give a brief reason, comparing means and variability, for your answer.
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Quizplus · Accepted Answer

The Answer is Dataset A is likely to provide stronger evidence of differences among the population means because, while the sample means within each group look to be about the same for both datasets, there is much less variability within each group in Dataset A than there is in Dataset B.

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