Basic Statistics for Business and Economics ch 11
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| What are the five steps for two-sample tests of hypothesis of independent samples? | State the null and the alternate hypothesis. Select the level of significance. Determine the test statistic. Formulate a decision rule. Make the decision regarding null hypothesis and interpret the results.
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| What are the five steps for two-sample tests of hypothesis for proportions? | State the null and the alternate hypothesis. Select the level of significance. Determine the test statistic. Formulate a decision rule. Select a sample and make a decision.
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| What are the requirements or the assumptions for the Pooled t-test? | The sampled populations follow the normal distribution. The sampled populations are independent. The standard deviations of the two populations are equal.
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| p sub c | Pooled Proportion
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| s sub p squared | Pooled Sample Variance
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| X bar sub 1 | Mean of the first sample
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| X bar sub 2 | Mean of the second sample
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| d bar | Mean of the difference between dependent observations.
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| s sub b | Standard deviation of the difference between dependent observations.
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