a special diet is intended to reduce systolic blood pressure among patients diagnosed with stage two hypertension. if t

[answerhappygod]

a special diet is intended to reduce systolic blood
pressure among patients diagnosed with stage two hypertension. if
the diet is effective, the target is to have the average systolic
blood pressure of this group below 150. after six months on the
diet, a simple random sample of 28 patients had an average systolic
blood pressure of x=153 with standard deviation s=21. using a
significance level of a=0.05, perform a hypothesis to decide if the
diet is effective in meeting the target.