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Questions and Answers
What is the coefficient of determination (R-squared) for the simple linear regression model?
What is the coefficient of determination (R-squared) for the simple linear regression model?
- 0.875
- 0.00 (correct)
- 0.71
- 0.125
What does the p-value associated with the coefficient of x suggest about its significance?
What does the p-value associated with the coefficient of x suggest about its significance?
- High significance
- Low significance
- No significance (correct)
- Negative significance
Which of the following best describes the relationship between average annual salary and food expenses percentage based on the regression equation?
Which of the following best describes the relationship between average annual salary and food expenses percentage based on the regression equation?
- As average annual salary increases, food expenses percentage increases.
- As average annual salary increases, food expenses percentage decreases. (correct)
- There is no relationship between average annual salary and food expenses percentage.
- Average annual salary has no effect on food expenses percentage.
What does the Analysis of Variance (ANOVA) table suggest about the regression model?
What does the Analysis of Variance (ANOVA) table suggest about the regression model?
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What does it mean if the residual error is high in the context of this linear regression model?
What does it mean if the residual error is high in the context of this linear regression model?
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