We are given the following information about chicken sandwiches.
Let x represent the grams of fat. Then the mean of 11 sandwiches is `bar(x)=20.6` with a standard deviation of `s_x=9.8`
Let y (the dependent variable) represent the total calories. Then the mean is `bar(y)=472.7` with a standard deviation of `s_y=144.2`
The correlation coefficient `r=0.947` indicates a strong, positive linear relationship between these variables. (In other words, as the grams of fat increase, we expect to see the calories increase also.)
(1) To calculate the regression line, we first assume that there is a linear relationship between the variables. The scatterplot should show points roughly along a "line," and the...
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