Question 1. A chemist studied the concentration of a solution (Y) over time (2). Fifteen identical solutions were prepared. The solutions were randomly divided into five sets of three, and the five sets were measured, respectively after 1, 3, 5, 7, and 9 hours. (a) Without making any plots the chemist entered the data into R, fitted a simple linear regression model and then carried out a goodness of fit test. The following is the Analysis of Variance table he produced but with some figures missing. Analysis of Variance Table Response: y x Residuals Lack of fit Pure error Total Df Sum Sq Mean Sq F value 1 12.5971 13 2.770 14 15.5218 the model for oin (ii) Copy and complete the Analysis of Variance Table.

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