High levels of cholesterol in the blood are associated with a higher risk of heart attacks. Will using a drug to lower blood cholesterol reduce heart attacks? To investigate this question, the Helsinki Heart Study recruited middle-aged men with high cholesterol but no history of other serious medical problems. The volunteer subjects were assigned at random to one of two treatments: 2051 men took the drug gemfibrozil to reduce their cholesterol levels, and a control group of 2030 men took a placebo. During the next five years, 56 men in the gemfibrozil group and 84 men in the placebo group had heart attacks. Do these data give convincing evidence at the a=0.01 significance level that gemfibrozil reduces the proportion of men like these who have heart attacks in comparison to a placebo? STATE: Complete this by dragging items in the answer bank and placing them in the correct box. Leave all unused items in the answer bank. Parameter Evidence for Ha Ha Ho Answer Bank P₁ = true proportion of men like those in the study who would have a heart attack if they took gemfibrozil and p; true proportion of men like those in the study who would have a heart attack if they took a placebo. P-P<0 -=-0.014<0 Pi-p<0 PI-P20 P-P1>0 Pi-P2=0 P-P-0.014 0 P-P2=0 Piproportion of men in the study who had a heart attack if they took gemfibrozil and proportion of men in the study who had a heart attack if they took a placebo. 1-20 Pi-P₂>0 PLAN: Select the 7 statements that apply. Two-sample z test for P-P2 n=2030 230
High levels of cholesterol in the blood are associated with a higher risk of heart attacks. Will using a drug to lower blood cholesterol reduce heart attacks? To investigate this question, the Helsinki Heart Study recruited middle-aged men with high cholesterol but no history of other serious medical problems. The volunteer subjects were assigned at random to one of two treatments: 2051 men took the drug gemfibrozil to reduce their cholesterol levels, and a control group of 2030 men took a placebo. During the next five years, 56 men in the gemfibrozil group and 84 men in the placebo group had heart attacks. Do these data give convincing evidence at the a=0.01 significance level that gemfibrozil reduces the proportion of men like these who have heart attacks in comparison to a placebo? STATE: Complete this by dragging items in the answer bank and placing them in the correct box. Leave all unused items in the answer bank. Parameter Evidence for Ha Ha Ho Answer Bank P₁ = true proportion of men like those in the study who would have a heart attack if they took gemfibrozil and p; true proportion of men like those in the study who would have a heart attack if they took a placebo. P-P<0 -=-0.014<0 Pi-p<0 PI-P20 P-P1>0 Pi-P2=0 P-P-0.014 0 P-P2=0 Piproportion of men in the study who had a heart attack if they took gemfibrozil and proportion of men in the study who had a heart attack if they took a placebo. 1-20 Pi-P₂>0 PLAN: Select the 7 statements that apply. Two-sample z test for P-P2 n=2030 230
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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