A repeated-measures study finds a mean difference of md 5, Ask an Expert

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A repeated-measures study finds a mean difference of MD = 5 points between two treatment conditions. Which of the following sample characteristics is most likely to produce a significant t statistic for the hypothesis test?

a. a large sample size (n) and a large variance

b. a large sample size (n) and a small variance

c. a small sample size (n) and a large variance

d. a small sample size (n) and a small variance

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