Burgers you examined the association between the amounts of, Ask an Expert

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Burgers.

You examined the association between the amounts of Fat and Calories in fast-food hamburgers. Here are the data:

Fat(g)	19	31	34	35	39	39	43
Calories	410	580	590	570	640	680	660

a) Create a scatterplot of Calories vs. Fat.

b) Interpret the value of R² in this context.

c) Write the equation of the line of regression.

d) Use the residuals plot to explain whether your linear model is appropriate.

e) Explain the meaning of the y-intercept of the line.

f) Explain the meaning of the slope of the line.

g) A new burger containing 28 grams of fat is introduced. According to this model, its residual for calories is +33 How many calories does the burger have?

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