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Suppose you are going to test the hypothesis that population 1 has a mean that is exactly 2 less than the mean of population 2.

Suppose you are going to test the hypothesis that population 1 has a mean that is exactly 2 less than the mean of population 2. Sample 1 has a mean of 34.5 and sample 2 has a mean of 30. The respective standard deviations are 5 and 9 and the sample sizes are 33 and 42. What is the test statistic?

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