Referring to Scenario 1, this is a test of: Scenario 1 The null and alternative

Question

Referring to Scenario 1, this is a test of: Scenario 1 The null and alternative hypotheses for given statistical analysis are: ??-?? (the average assignment scores are equal for the 2 groups of students) He ?'-?? (the average assignment scores are not equal for the 2 groups of students) The populations from which the sample data was obtained are assumed to be normal. The level of significance is 0.01 (a-001). The results of the analysis are shown below. tTest: Two.Sa ariable 1Variable 2 17.55714286 19.89047619 3.737571429 20.94590476 Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T

Explanation / Answer

t stat = -2.15

t critical two-tail = 2.02

Since t stat < t critical, we fail to reject null hypothesis and conclude that the average assignment scores are equal for the 2 groups of students

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