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Published online before print February 28, 2003, 10.1148/radiol.2271020085

(Radiology 2003;227:1.)

A more recent version of this article appeared on April 1, 2003
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Hypothesis Testing II: Means1

Richard Tello, MD, MSME, MPH and Philip E. Crewson, PhD

1 From the Department of Radiology, Boston University School of Medicine, 88 E Newton St, Atrium 2, Boston, MA 02118 (R.T.); and Health Services Research and Development Service, Department of Veterans Affairs, Washington, DC (P.E.C.). Received February 11, 2002; revision requested March 18; revision received April 1; accepted May 1. Address correspondence to R.T. (e-mail: tello@alum.mit.edu).



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  		Calculations for the independent samples t test statistic reported in Table 1.

 




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