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{"ops":[{"insert":"You are a researcher who is interested in how watching television influences children\u2019s 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."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"Child No.   Hours of TV\tOverall Grade Average"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"1\t                   5\t                      80"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"2\t                 20\t                      67"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"3\t                  6\t                       75"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"4\t                 14\t                       70"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"5\t                 12\t                       80"},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"a.\tCalculate the correlation between hours of television watched and overall grade average. Interpret the correlation \u2013 what does it mean?\t\t "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"b.\tCalculate the regression equation (use television watching to predict grade).    "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"c.\tMake a scatter plot of the data and draw the line of best fit on your scatter plot."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":""},{"insert":"\n"}]}

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