The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) belov Commute Time (minutes), x Well-Being Index Score, y 105 D 69.1 67.8 66.8 66.6 65.1 64.4 62.5 5 20 30 35 60 84 (Round to three decimal places as needed.) G C. For a commute time of zero minutes, the index score is predicted to be 68.980 (Round to three decimal places as needed.) O D. For every unit increase in commute time, the index score falls by (Round to three decimal places as needed.) on average. O E. It is not appropriate to interpret the y-intercept because a commute time of zero minutes does not make sense and the value of zero minutes is much smaller than those observed in the data set. (c) Predict the well-being index of a person whose commute time is 25 minutes, The predicted index score is 67.5 (Round to one decimal place as needed.) (d) Suppose Barbara has a 15-minute commute and scores 67.3 on the survey. Is Barbara more "well-off" than the typical individual who has a 15-minute commute? Select the correct choice below and fill in the answer box to complete your choice. (Round to one decimal place as needed.) O A. Yes, Barbara is more well-off because the typical individual who has a 15-minute commute scores O B. No, Barbara is less well-off because the typical individual who has a 15-minute commute scores
The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) belov Commute Time (minutes), x Well-Being Index Score, y 105 D 69.1 67.8 66.8 66.6 65.1 64.4 62.5 5 20 30 35 60 84 (Round to three decimal places as needed.) G C. For a commute time of zero minutes, the index score is predicted to be 68.980 (Round to three decimal places as needed.) O D. For every unit increase in commute time, the index score falls by (Round to three decimal places as needed.) on average. O E. It is not appropriate to interpret the y-intercept because a commute time of zero minutes does not make sense and the value of zero minutes is much smaller than those observed in the data set. (c) Predict the well-being index of a person whose commute time is 25 minutes, The predicted index score is 67.5 (Round to one decimal place as needed.) (d) Suppose Barbara has a 15-minute commute and scores 67.3 on the survey. Is Barbara more "well-off" than the typical individual who has a 15-minute commute? Select the correct choice below and fill in the answer box to complete your choice. (Round to one decimal place as needed.) O A. Yes, Barbara is more well-off because the typical individual who has a 15-minute commute scores O B. No, Barbara is less well-off because the typical individual who has a 15-minute commute scores
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below
105
Commute Time (minutes), x
Well-Being Index Score, y
20
30
35
60
84
69.1 67.8 66.8 66.6 65.1
64.4 62.5
(Round to three decimal places as needed.)
CC. For a commute time of zero minutes, the index score is predicted to be 68 980
(Round to three decimal places as needed.)
C0 For every unit increase in commute time, the index score falls by
(Round to three decimal places as needed.)
on average.
OE It is not appropriate to interpret the y-intercept because a commute time of zero minutes does not make sense and the value of zero minutes is much smaller than those observed in the data set.
(c) Predict the well-being index of a person whose commute time is 25 minutes.
The predicted index score is 67.5.
(Round to one decimal place as needed.)
(d) Suppose Barbara has a 15-minute commute and scores 67.3 on the survey. Is Barbara more "well-off" than the typical individual who has a 15-minute commute? Select the correct choice below and fill in the answer box to
complete your choice.
(Round to one decimal place as needed.)
O A. Yes, Barbara is more well-off because the typical individual who has a 15-minute commute scores
B. No, Barbara is less well-off because the typical individual who has a 15-minute commute scores
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