The null and alternate hypotheses are: H₀:₁=_{2 H1}:_{12 A random sample of 8 observations from one population revealed a sample mean of 23 and a sample standard deviation of 3.8. A random sample of 9 observations from another population revealed a sample mean of 27 and a sample standard deviation of 3.8. The population standard deviations are unknown but assumed to be equal. At the 0.05 significance level, is there a difference between the population means? Required: A.}State the decision rule.(Negative amounts should be indicated by a minus sign. Round your answer to 3 decimal places.)

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