A special diet is intended to reduce systolic blood pressure. If the diet is effective, the target is to have the averag
Posted: Mon Jul 11, 2022 11:17 am
A special diet is intended to reduce systolic blood pressure. If the diet is effective, the target is to have the average systolic blood pressure of this group be below 150. After six months on the diet, an SRS of 28 patients with high blood pressure had an average cholesterol of (sample) mean 143, with standard deviation s = 21. Is this sufficient evidence that the diet is effective in meeting the target? Assume the distribution of the cholesterol for patients in this group is approximately Normal with mean ยต. Based on the data, the value of the one- sample t statistic is Select one: -1.76. O b. -0.33. a. c. 1.76. O c. O d. 0.33. e. 2.33.