Question

1) Write the regression equation.

2) Explain the value of unstandardized B coefficient.

3) Explain the value of standardized B coefficient.

4) What null hypothesis is being tested?

Regression Output - 3

Coefficientsa
Model		Unstandardized Coefficients		Standardized Coefficients	t	Sig.
		B	Std. Error	Beta
1	(Constant)	15162.617	1108.148		13.683	.000
	Appraised Land Value	3.496	.054	.793	64.286	.000
a. Dependent Variable: Sale Price

Answer 1

1. The regression equation is
Sale price = 15162.617 + 3.496 * Appraised Land value

2. The unstandardized B coefficient is 3.496 > 0 therefore there exist positive correlation between appraised land value and sale price

If land value increase 1 unit then sale price also increase 3.496

3. The value of standardized B coefficient is 0.793 it is test statistic of the slope i.e. coefficient of appraised land value

4. H0: The population coefficient of B1 is zero
H1: The population coefficient of B1 is not zero
Let the los be alpha = 5%
P-value = 0.0000 < alpha 0.05 so we reject H0
Thus we conclude that the population coefficient of B1 is not zero i.e. significant