A researcher investigates if meditation influences anxiety. She recruits 25 participants, measures their anxiety at Time 1, instructs them to meditate 15 minutes a day for 4 weeks, then measures anxiety again following the 4 weeks at Time 2 (Mean difference = time2 - time1). Given the following confidence interval [-1.2, 2.5], what should you decide in regard to the null hypothesis? O Reject the null hypothesis and conclude that meditation affected anxiety because zero, or no effect, falls within the confidence interval. O Fail to reject the null hypothesis and conclude that meditation did not affect anxiety because zero, or no effect, falls within the confidence interval. Fail to reject the null hypothesis and conclude the effect size is small for this study. O Reject the null hypothesis and conclude meditation lowers anxiety because the confidence interval includes small numbers