You are a researcher who is interested in how watching television influences children's performance in school. You find out how many hours of television 5 children watch, on average, in a week. You have obtained their overall grade average. Child No. Hours of TV Overall Grade Average 1 5 80 2 20 67 3 6 75 4 14 70 5 12 80 a. Calculate the correlation between hours of television watched and overall grade average. Interpret the correlation - what does it mean? b. Calculate the regression equation (use television watching to predict grade). c. Make a scatter plot of the data and draw the line of best fit on your scatter plot.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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You are a researcher who is interested in how watching television influences children's
performance in school. You find out how many hours of television 5 children watch, on
average, in a week. You have obtained their overall grade average.
Child No.
Hours of TV
Overall Grade Average
1
5
80
2
20
67
3
6
75
4
14
70
5
12
80
a. Calculate the correlation between hours of television watched and overall grade
average. Interpret the correlation - what does it mean?
b. Calculate the regression equation (use television watching to predict grade).
c. Make a scatter plot of the data and draw the line of best fit on your scatter plot.
Transcribed Image Text:You are a researcher who is interested in how watching television influences children's performance in school. You find out how many hours of television 5 children watch, on average, in a week. You have obtained their overall grade average. Child No. Hours of TV Overall Grade Average 1 5 80 2 20 67 3 6 75 4 14 70 5 12 80 a. Calculate the correlation between hours of television watched and overall grade average. Interpret the correlation - what does it mean? b. Calculate the regression equation (use television watching to predict grade). c. Make a scatter plot of the data and draw the line of best fit on your scatter plot.
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