Question Help A recent study was conducted to determine whether a drug was effective at helping east-bound jet passengers adjust to jet lag. Subjects were randomly assigned either to one of three different doses of the drug (low, medium, high) or to a placebo, flown east in a plane in which they could not drink alcohol or coffee or take sleeping pills, and then examined in a lab where their state of wakefulness was measured and classified into categories (low, normal, alert). If we test whether treatments for jet lag are associated with wakefulness, are we doing a test of independence or of homogeneity? Explain. Choose the correct answer below. O A. It would be a test of independence because there was more than one sample. O B. It would be a test of homogeneity because the passengers were randomly assigned to different groups. O C. It would be a test of homogeneity because there was only one sample. O D. It would be a test of independence because the people are being separated into more than two categories (low, medium, high).
Question Help A recent study was conducted to determine whether a drug was effective at helping east-bound jet passengers adjust to jet lag. Subjects were randomly assigned either to one of three different doses of the drug (low, medium, high) or to a placebo, flown east in a plane in which they could not drink alcohol or coffee or take sleeping pills, and then examined in a lab where their state of wakefulness was measured and classified into categories (low, normal, alert). If we test whether treatments for jet lag are associated with wakefulness, are we doing a test of independence or of homogeneity? Explain. Choose the correct answer below. O A. It would be a test of independence because there was more than one sample. O B. It would be a test of homogeneity because the passengers were randomly assigned to different groups. O C. It would be a test of homogeneity because there was only one sample. O D. It would be a test of independence because the people are being separated into more than two categories (low, medium, high).
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
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