Accupril is meant to control hypertension. In clinical trials of Accupril, 2142 subjects were divided into two groups. The 1563
subjects in the experimental group received Accupril. The 579 subjects in the control group received a placebo. Of the 1563 in the experimental group, 61 experienced dizziness as a side effect. Of the 579 subjects in the control group, 15 experienced dizziness as a side effect. Let p_1 be the true proportion of people who experience dizziness while taking Accupril. Let p_2 be the true proportion of people who experience dizziness but do not take Accupril. Create a 95% confidence interval for p_1 - p_2.
a. (0.006, 0.092)
b. (-0.06, 0.92)
c. (-0.003, 0.029)
d. (-0.04, 0.29)
They are incorrect because when going from percent to decimal, you divide the percent by 100 and when going from decimal to percent you multiply the decimal by 100. So in the case of 14.5%... divide 14.5% by 100 to get .145. The correct decimal is .145 not 14.5.