Clinical Trial A treatment for hypertension has been found to be successful in 60% of the patient population. In a test of a new treatment, 40 subjects are treated for hypertension and 29 of these subjects experience success with the new treatment.

a. Assuming that the old success rate of 60% still applies, use the range rule of thumb to identify the limits separating numbers of successes that are significantly low or significantly high.

Based on the results, is 29 successes among the 40 subjects significantly high?

b. Find the probability that exactly 29 of the 40 cases are successes, assuming that the general success rate is 60%.

c. Find the probability that 29 or more of the cases are successes, assuming that the general success rate is 60%.

d. Which probability is relevant for determining whether 29 successes is significantly high: the probability from part

(b) or part (c)? Based on the relevant probability, is the result of 29 successes significantly high?

e. What do the results suggest about the effectiveness of the new treatment?