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Hypothesis Testing

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A random sample of 10 observations from one population revealed a sample mean of 23 and a sample deviation of 4. A random sample of 8 observations from another population revealed a sample mean of 26 and a sample standard deviation of 5. At the .05 significance level, is there a difference between the population means?

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M1 = 23, M2 = 26, S1 = 4, S2 = 5, n1 = 10, n2 = 8

SE of the difference between the ...

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