An experiment was conducted to study the relationship between baking temperature

Question

An experiment was conducted to study the relationship between baking temperature x (in units of 10 degree Fahrenheit) and yield y (as a percentage) of a popular cake mix. The results were as follows (a) Make a scatter plot of y against x. (b) Estimate the parameters of the simple linear regression model by least squares, and calculate the fitted values and residuals. The following data of Snedecor and Cochran show the initial weights and the gains in weight (both in grams) of 15 female rats on a high-protein diet that was administered from the 24th day to the 84th day of their age.

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An experiment was conducted to study the relationship between baking temperature

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