Suppose the historical success rate (earning a C or better) in General Chemistry for colleges and universities is low, about 50%.A researcher believed a meditative therapy could improve success rates.She randomly selected 64 first-time enrollees from multiple sections of General Chemistry.They met biweekly to learn and practice meditation strategies.They were encouraged to study immediately following the sessions and many of the students formed study groups to do just that.Of the 64 students, 44 earned grades of C or better. Does the study provide good evidence that meditation strategies improve success rates in the course?

i. Assume the conditions for a hypothesis test are met.Compute the z test statistic, and state the p-value.

ii. Using=0.01, is there statistically significant evidence that the proportion of successes for the meditation group is more than 0.5?Explain your reasoning.

iii. Provide a critique of the study.Indicate if the study is observational or experimental.Based on the study's results, should all General Chemistry courses include the meditation strategies?If so, why? If not, what concerns/questions do you have?