Find the Standardized Test Statistic, T, to Test the Hypothesis

question 119

Multiple Choice

Find the standardized test statistic, t, to test the hypothesis that μ1 < μ2. Two samples are randomly selectedand come from populations that are normal. The sample statistics are given below. $$\begin{array}{l}\mathrm { n } _ { 1 } = 15 \quad \mathrm { n } _ { 2 } = 15\\\bar { x } 1 = 27.44 \quad \bar { x } 2 = 29.99\\\mathrm { s } _ { 1 } = 2.9 \quad \mathrm {~s} _ { 2 } = 2.8\end{array}$$

• A) -2.450
• B) -3.165
• C) -1.667
• D) -0.669

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