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Chapter 3: Q 53. (page 205)

More candy Refer to Exercise 51. Use technology to create a residual plot. Sketch the residual plot and explain what information it provides.

Short Answer

Expert verified

The point pattern in the scatterplot looks to be random, and the pattern does not appear to have substantial curvature, implying that the linear model is adequate.

Step by step solution

01

Given information

02

Explanation

We must now make a residual plot for the sugar and calories. The residual plot will be plotted with the calculator. To get to plot 1we'll first press 2nd>Y=and then enter. Then make sure that On is selected and that the first graph type is chosen. L1 should be entered after Xlistand YlistAs a result of pressing GRAPH at the end, we get the following:

This means that the point pattern in the scatterplot looks to be random, and the pattern does not appear to have substantial curvature, implying that the linear model is adequate.

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