Quiz

Researchers recently did a study to determine if Bayer's Aleve thinned blood.  Suppose that in this study, the 41 Aleve users showed a mean blood thinning of 0.6 units with a standard deviation of 0.15 units.  The 60 patients who took a placebo showed a mean blood thinning of 0.1 units with a standard deviation of 0.06.  What can be concluded at the 0.01 level of significance?