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quiz_100 - Georgia Southern University College of Business...

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Georgia Southern University, College of Business BUSA 3131 Business Statistics Quiz 10 Fall 2011 Name: ________________________ 1. A comparison of two independent random samples is often conducted to test for the degree of difference in some variable. Might such a comparison test for differences in a mean value? a. Yes b. No 2. When a research project tests for difference between the means of two independent populations, the null hypothesis ( H 0 ) usually assumes the difference is zero. The alternative hypothesis would assume: a. That the two independent populations have the same value b. That there is no measureable difference between the means of the two populations c. That a difference between two populations, if any, is represented by the Greek symbol Δ (delta) with a 0 subscript(Δ 0 ) or the English letter D with a zero subscript ( D 0 ). 3. TRUE or FALSE: A t -value must be calculated for the test statistic since the standard deviation is unknown and a t-distribution must be used to assign relative levels of probability.
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