activity_10

# activity_10 - Georgia Southern University College of...

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Georgia Southern University, College of Business Administration BUSA 3131 Business Statistics Fall 2011 Activity 10 Name: _________________ 1. It is possible to develop a pair of hypotheses to test differences between two values. This can be useful in deciding whether two measures of similar processes are sufficiently different to warrant a specific action. When testing for differences between two variables, the symbol D is used to refer to difference. A numeric value is then chosen for the hypothesis pair and this value is then compared between the mean of two populations. A pair of hypotheses designed to test differences, will use the symbol D 0 to refer to the hypothesized difference as stated in the null and alternative hypotheses. The alternative hypothesis usually states that there is a difference between the two data sets. Consequently, the null hypothesis says that the two data sets are equal. This is the same form used for other hypothesis tests. The following is the hypothesis pair for a test of difference: H 0 : x- bar 1 x -bar 2 = 0 H A : x-

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activity_10 - Georgia Southern University College of...

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