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The data in the table below shows the times (in days) that an artist spent recording an album and the score (out of 100) the album subsequently received in a popular music magazine. Time (Days) Score 4 36 41 87 23 67 19 62 1 23 11 18 52 61 13 43 18 8 65 52

The data in the table below shows the times (in days) that an artist spent recording an album and the score (out of 100) the album subsequently received in a popular music magazine. Time (Days) Score 4 36 41 87 23 67 19 62 1 23 11 18 52 61 13 43 18 8 65 52

MATLAB: An Introduction with Applications
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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The data in the table below shows the times (in days) that an artist spent recording an album and the score (out of 100) the album subsequently received in a popular music magazine. Time (Days) Score 100 90 80 70 60 50 40 30 20 10 0 4 0 36 41 87 The scatter plot of this data is shown below 5 23 67 10 19 15 62 1 23 Score Obtained vs Time Spent Recording 20 11 18 52 (b) Identify the independent (or explanatory) variable 25 (a) Label each axes of the scatter plot in the boxes provided 61 30 13 43 35 18 65 8 52 40
Transcribed Image Text:The data in the table below shows the times (in days) that an artist spent recording an album and the score (out of 100) the album subsequently received in a popular music magazine. Time (Days) Score 100 90 80 70 60 50 40 30 20 10 0 4 0 36 41 87 The scatter plot of this data is shown below 5 23 67 10 19 15 62 1 23 Score Obtained vs Time Spent Recording 20 11 18 52 (b) Identify the independent (or explanatory) variable 25 (a) Label each axes of the scatter plot in the boxes provided 61 30 13 43 35 18 65 8 52 40
(c) The equation of the least squares regression line for the data in the scatterplot is: score = 1.62 x time + 30.8 (with r = 0.94) From this information comment on the strength and direction of the correlation, and justify your answers (ii) (i) Interpret the slope of this least squares regression line in terms of the variables score and time.
Transcribed Image Text:(c) The equation of the least squares regression line for the data in the scatterplot is: score = 1.62 x time + 30.8 (with r = 0.94) From this information comment on the strength and direction of the correlation, and justify your answers (ii) (i) Interpret the slope of this least squares regression line in terms of the variables score and time.
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