Suppose you are an investigator evaluating whether there is a mean difference in systolic blood pressure with pharmacistted medication therapy management (MTM) compared to usual care. At the end of the study, you observed a mean difference in systolic blood pressure between MTM and usual care as - 10.4 mmHg . Assuming that the true mean difference for systolic blood pressure in this population is .5.2 mmHl . which of the following best describes the potential bias seen with the observed value? No bias was observed in this study Bias towards the null Bias away from the null.