Practice Quiz

Six Sigma Black Belt Exam Prep

Category - Black Belt

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In a simple linear regression line, the rate of change of one variable is measured against another. The resulting equation is listed below. What does the term (b0) stand for?
  1. intercept
  2. slope
  3. random error term
  4. known error term
Explanation
Answer: A - The term b0 stands for intercept.

Key Takeaway: In a simple linear regression equation an unknown value of variable Y is predicted from a known value of variable X. The other components of the equation include two coefficients that are derived from a set of data that match values of variables X and Y. b0 represents the y-intercept value (when x=0) when this data is plotted and a line of best fit is drawn.
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