Which set of sample characteristics is most likely to produce a statistically significant value for the independent-samples t statistic? A) A small mean difference between groups and small sample variances within groups B) A large mean difference between groups and small sample variances within groups C) A large mean difference within groups and small sample variances between groups D) A small mean difference within groups and large sample variances between groups
Added by Jaime C.
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For the t statistic to be statistically significant, we want a large t value. This can be achieved by having a large numerator (large mean difference between groups) and a small denominator (small sample variances within groups). Show more…
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