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e inclusive period August 2001 - July 2005. The data are presented in Table 1, which may be found on the following page.

In the ANOVA, the class of United States Treasury bill (4-week, three-month, or six-month) was the independent variable (nominal). The rates of return on the United States Treasury bills were the dependent variables (continuous). The criterion for the rejection of the null hypothesis was a determination of statistical significance at p<.05.

Table 1 - Rate of Return Data: Selected Treasury Bills

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