Suppose a group of 700 smokers (who all wanted to give up smoking) were randomly assigned to receive a newly developed drug or a placebo for eight weeks. Of the 380 patients who received the new drug, 52 were not smoking one year later. Of the 320 patients who received the placebo, 85 were not smoking one year later. Does this evidence indicate that the new drug is significantly better at helping people stop smoking? Use a significance level of 5%. Find the z stat, p-value , what is your decision? Give a summary
Suppose a group of 700 smokers (who all wanted to give up smoking) were randomly assigned to receive a newly developed drug or a placebo for eight weeks. Of the 380 patients who received the new drug, 52 were not smoking one year later. Of the 320 patients who received the placebo, 85 were not smoking one year later. Does this evidence indicate that the new drug is significantly better at helping people stop smoking? Use a significance level of 5%. Find the z stat, p-value , what is your decision? Give a summary
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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Suppose a group of 700 smokers (who all wanted to give up smoking) were randomly assigned to receive a newly developed drug or a placebo for eight weeks. Of the 380 patients who received the new drug, 52 were not smoking one year later. Of the 320 patients who received the placebo, 85 were not smoking one year later. Does this evidence indicate that the new drug is significantly better at helping people stop smoking? Use a significance level of 5%. Find the z stat, p-value , what is your decision? Give a summary
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