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Chapter 3: Q 54. (page 205)

More long jumps Refer to Exercise 52. Use technology to create a residual plot. Sketch the residual plot and explain what information it provides.

Short Answer

Expert verified

The pattern does not appear to include considerable curvature, implying that the linear model is adequate.

Step by step solution

01

Given information

02

Explanation

Now we must plot the dash time in seconds and the long-jump distance in inches on a residual plot. To make it, we'll utilize a calculator, such as a Ti83/84-calculator. To get to plot 1start by pressing 2nd>Y=and then entering. Then make sure that On is selected and that the first graph type is chosen. L1comes after Xlistand RESID comes after YlistAs a result of pressing GRAPH at the end, we get the following:

This suggests that the point pattern looks to be random in the scatterplot and that the pattern does not appear to include considerable curvature, implying that the linear model is adequate.

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