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[Steps Shown] A reading test is given to two groups of students (group A - 12 students, group B - 10 students). The results of the tests are: _ _ group

Question: A reading test is given to two groups of students (group A - 12 students, group B - 10 students). The results of the tests are: _ _

group A: X1 = 74, s1 = 8; group B: X2 = 70, s2 = 10.

Is the difference between the means of the two groups statistically significant at the 0.02 level of significance?

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