Business Statistics

Chapter 11 | Statistical Inference: Hypothesis Testing for Two Populations 351

the hypothesized mean difference (in this case, it is equal to zero). Then from Alternative, select not

equal and click OK. The 2-Sample t (Test and Condence Interval) dialog box will reappear on the

screen. Click OK. Minitab will calculate the t and p values for the test (shown in Figure 11.9).

11.3.3 Using SPSS for Hypothesis Testing About the Difference Between Two

Population Means Using the t Statistic

In order to use SPSS, select Analyze/Compare Means/Independent-Samples T-test. The Indepen-

dent-Samples T test dialog box will appear on the screen (Figure ...