An Unhealthy Commute The Gallup Organization regularly surveys adult Americans regarding
Chapter 4, Problem 25(choose chapter or problem)
An Unhealthy Commute The Gallup Organization regularly surveys adult Americans regarding their commute time to work. In addition, they administer a Well-Being Survey. According to the Gallup Organization, The GallupHealthways Well-Being Index Composite Score is comprised of six sub-indices: Life Evaluation, Emotional Health, Physical Health, Healthy Behavior, Work Environment and Basic Access. A complete description of the index can be found at The data in the followingtable are based on the results of the survey, which representcommute time to work (in minutes) and well-being index score.Commute Time(in minutes)Gallup-Healthways Well-BeingIndex Composite Score 5 69.2 15 68.3 25 67.5 35 67.1 50 66.4 72 66.1105 63.9Source: The Gallup Organization(a) Which variable do you believe is likely the explanatoryvariable and which is the response variable?(b) Draw a scatter diagram of the data.(c) Determine the linear correlation coefficient betweencommute time and well-being index score.(d) Does a linear relation exist between the commute time andwell-being index score?
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