Question

1. Linear regression analysis of the data revealed the following:

Model Summary
Model	R	R Square	Adjusted R Square	Std. Error of the Estimate
1	.695a	.483	.478	13.02473
a. Predictors: (Constant), exercise, gender, subject's age, depressed state of mind

ANOVAa
Model		Sum of Squares	df	Mean Square	F	Sig.
1	Regression	65230.870	4	16307.718	96.129	.000b
	Residual	69893.149	412	169.644
	Total	135124.019	416
a. Dependent Variable: Life Purpose and Satisfaction
b. Predictors: (Constant), exercise, gender, subject's age, depressed state of mind

Coefficientsa
Model		Unstandardized Coefficients		Standardized Coefficients	t	Sig.	95.0% Confidence Interval for B
		B	Std. Error	Beta			Lower Bound	Upper Bound
1	(Constant)	100.074	3.380		29.609	.000	93.430	106.718
	gender	3.766	1.350	.099	2.789	.006	1.112	6.420
	subject's age	.115	.050	.081	2.276	.023	.016	.214
	depressed state of mind	-15.575	.918	-.617	-16.975	.000	-17.379	-13.772
	exercise	3.203	.641	.182	4.997	.000	1.943	4.464
a. Dependent Variable: Life Purpose and Satisfaction

• When controlling for all other variables, is there any variable that is NOT a significant predictor of Life Purpose and Satisfaction?

• By how much does Life Purpose and Satisfaction decline for each incremental worsening in depressed state of mind when controlling for gender, age, and exercise?

• Other factors being equal (gender, depressed state of mind, exercise), does Life Purpose and Satisfaction improve with age? If yes, by how much each year?

• Based on the GLM, what would the predicted Life Purpose and Satisfaction score be for a 60 year-old woman who rarely exercises and often feels in a depressed state of mind?

Answer 1

When controlling for all other variables, is there any variable that is NOT a significant predictor of Life Purpose and Satisfaction

All variables are significant.

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By how much does Life Purpose and Satisfaction decline for each incremental worsening in depressed state of mind when controlling for gender, age, and exercise.

-15.575

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Other factors being equal (gender, depressed state of mind, exercise), does Life Purpose and Satisfaction improve with age.

Yes it been increased with Age.

.115 increase for every 1 increase in age.

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Based on the GLM, what would the predicted Life Purpose and Satisfaction score be for a 60 year-old woman who rarely exercises and often feels in a depressed state of mind.

= 91.399 (When consided Female = 0)

= 95.165(When consided Female = 1)

Thanks in advance!

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