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Regression Analysis Quiz on Average Annual Salary and Food Expenses Percentage
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Regression Analysis Quiz on Average Annual Salary and Food Expenses Percentage

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Questions and Answers

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?

  • 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?

  • 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?

    <p>The model is insignificant.</p> Signup and view all the answers

    What does it mean if the residual error is high in the context of this linear regression model?

    <p>The model does not fit the data well.</p> Signup and view all the answers

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