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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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Most popular questions from this chapter

Calculating achievement a study found a strong link between the number of calculators possessed by high school pupils and their arithmetic proficiency, according to the principle of a high school. Based on this study, he decides to buy each student at his school two calculators, hoping to improve their math achievement. Explain the flaw in the principal’s reasoning.

More crying? Refer to Exercise 16Does the fact that r=0.45 suggest that making an infant cry will increase his or her IQ later in life? Explain your reasoning.

There is a linear relationship between the number of chirps made by the striped ground cricket and the air temperature. A least-squares fit of some data collected by a biologist gives the model y^=25.2+3.3x , where x is the number of chirps per minute and y^ is the estimated temperature in degrees Fahrenheit. What is the predicted increase in temperature for an increase of = chirps per minute?

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What’s my grade? In Professor Friedman’s economics course, the correlation

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