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Author Question: The symbol is used to represent the sample mean. Indicate whether the statement is true or ... (Read 62 times)

Lobcity

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on: Jun 24, 2018
The symbol  is used to represent the sample mean.
 
  Indicate whether the statement is true or false

Question 2

Find the coefficient of determination of this simple linear model. What does this statistic tell you about the model?
 
  What will be an ideal response?


jamesnevil303

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Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

Since the coefficient of determination R2 = 0.325, this means that only 32.5 of the variation in weekly sales is explained by this simple linear model, while 67.5 remains unexplained. We may conclude that the simple linear model does not provide a good fit to this data set.


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