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Bad model? A student who has created a linear model is
Chapter 8, Problem 20E(choose chapter or problem)
QUESTION:
Problem 20E
Bad model? A student who has created a linear model is disappointed to find that her R2 value is a very low 13%.
a) Does this mean that a linear model is not appropriate? Explain.
b) Does this model allow the student to make accurate predictions? Explain.
Questions & Answers
QUESTION:
Problem 20E
Bad model? A student who has created a linear model is disappointed to find that her R2 value is a very low 13%.
a) Does this mean that a linear model is not appropriate? Explain.
b) Does this model allow the student to make accurate predictions? Explain.
ANSWER:
Step 1 of 2
a) No, because most of the variability in the variables has not been explained by the model since is very small.