Regression Methods were used to analyze the data from a study investigates the relationship between roadway surface temperature (Xi) and Pavement deflection (Yi). Summary quantities were n= 20, Sum of Yi
= ∑ Yi = 12.75, and ∑Yi² = 8.86, ∑Xi = 1478, ∑ Xi² = 143,215.8 and ∑ Xi Yi= 1083.67.
a) Calculate the Least Square (χ²);
b)estimates of slope and intercept set the line equation
c)Explain graph-Line of the regression line slope (+) or (-) and (0) if any?
The solution is done showing all steps with calculations and required formulas. Hope you can understand.
Get Answers For Free
Most questions answered within 1 hours.