Need help understanding graphing, slope and points.
Is the graphed line straight or curved. simple linear equation or multiple linear equation.
If the statistical T-value for the second regression coefficient is 9.80 is the coefficient valid at the 95% confidence level? why or why not
The equation of a line is the following: y = 2 + 0.28x1 + 43.8x
- What is the intercept of the line?
- Is this equation a straight or curvilinear line, and why?
- Is this the equation for a simple linear equation or a multiple linear equation?
- What are the two regression coefficients?
- If the statistical t-value for the second regression coefficient is 9.80, is the coefficient statistically valid at the 95% confidence level? Why or why not?