The following information is obtained from two independent samples selected from two populations. n1 =650 x1 =1.05 σ1 =5.22 n2 =675 x2 =1.54 σ2 =6.80 Test at a 5% significance level if μ1 is less than μ2. Identify the appropriate distribution to use. t distribution normal distribution What is the conclusion about the hypothesis? Reject Ho Do not reject Ho
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Step 1
05 - 1.54)}{\sqrt{(\frac{5.22^2}{650}) + (\frac{6.80^2}{675})}} \] \[ \text{Test Statistic} = \frac{-0.49}{\sqrt{0.0428 + 0.0576}} \] \[ \text{Test Statistic} = \frac{-0.49}{\sqrt{0.1004}} \] \[ \text{Test Statistic} = \frac{-0.49}{0.3169} \] \[ \text{Test Show more…
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