Answer to Question #347357 in Statistics and Probability for Keshi

Question

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.

Answer 1

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