16 Construct a scatterplot of the following data.

a. Plot the following two lines on your scatterplot:
y = 3 - x and y = 1 + x

b. Which of these lines would you choose to characterize the relationship between x and y ? Explain.

c. Show that the sum of errors for both of these lines equals 0.

d. Which of these lines has the smaller SSE?

e. Find the least squares line for the data, and compare it with the two lines described in part a .

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