Ice Cream Spending Analysis 53
Simple Random Sample Design 11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Data Summary
Number of Observations 40
Mean of Spending 8.75000
Sum of Spending 350.00000
Fit Statistics
R-square 0.8132
Root MSE 2.4506
Denominator DF 39
Class Level Information
Class
Variable Levels Values
Kids 4 1 2 3 4
ANOVA for Dependent Variable Spending
Sum of Mean
Source DF Squares Square F Value Pr > F
Model 4 915.310 228.8274 38.10 <.0001
Error 35 210.190 6.0054
Corrected Total 39 1125.500
Tests of Model Effects
Effect Num DF F Value Pr > F
Model 4 119.15 <.0001
Intercept 1 153.32 <.0001
Income 1 324.45 <.0001
Kids 3 0.92 0.4385
NOTE: The denominator degrees of freedom for the F tests is 39.
Ice Cream Spending Analysis 54
Simple Random Sample Design 11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Estimated Regression Coefficients
Standard
Parameter Estimate Error t Value Pr > |t|
Intercept -26.084677 2.46720403 -10.57 <.0001
Income 0.775330 0.04304415 18.01 <.0001
Kids 1 0.897655 1.12352876 0.80 0.4292
Kids 2 1.494032 1.24705263 1.20 0.2381
Kids 3 -0.513181 1.33454891 -0.38 0.7027
Kids 4 0.000000 0.00000000 . .
NOTE: The denominator degrees of freedom for the t tests is 39.
Matrix X'X is singular and a generalized inverse was used to solve the normal equations.
Estimates are not unique.
Ice Cream Spending Analysis 55
Stratified Simple Random Sample Design
11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Data Summary
Number of Observations 40
Sum of Weights 4000.0
Weighted Mean of Spending 9.14130
Weighted Sum of Spending 36565.2
Design Summary
Number of Strata 3
Fit Statistics
R-square 0.8219
Root MSE 2.4185
Denominator DF 37
Stratum Information
Stratum Population Sampling
Index Grade N Obs Total Rate
1 7 20 1824 1.10%
2 8 9 1025 0.88%
3 9 11 1151 0.96%
Class Level Information
Class
Variable Levels Values
Kids 4 1 2 3 4
ANOVA for Dependent Variable Spending
Sum of Mean
Source DF Squares Square F Value Pr > F
Model 4 94479.8 23619.94 40.38 <.0001
Error 35 20472.5 584.93
Corrected Total 39 114952.3
Ice Cream Spending Analysis 56
Stratified Simple Random Sample Design
11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Tests of Model Effects
Effect Num DF F Value Pr > F
Model 4 124.85 <.0001
Intercept 1 150.95 <.0001
Income 1 326.89 <.0001
Kids 3 0.99 0.4081
NOTE: The denominator degrees of freedom for the F tests is 37.
Estimated Regression Coefficients
Standard
Parameter Estimate Error t Value Pr > |t|
Intercept -26.086882 2.44108058 -10.69 <.0001
Income 0.776699 0.04295904 18.08 <.0001
Kids 1 0.888631 1.07000634 0.83 0.4116
Kids 2 1.545726 1.20815863 1.28 0.2087
Kids 3 -0.526817 1.32748011 -0.40 0.6938
Kids 4 0.000000 0.00000000 . .
NOTE: The denominator degrees of freedom for the t tests is 37.
Matrix X'WX is singular and a generalized inverse was used to solve the normal equations.
Estimates are not unique.
Ice Cream Spending Analysis 57
Stratified Simple Random Sample Design
11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Data Summary
Number of Observations 40
Sum of Weights 4000.0
Weighted Mean of Spending 9.14130
Weighted Sum of Spending 36565.2
Design Summary
Number of Strata 3
Fit Statistics
R-square 0.8219
Root MSE 2.4185
Denominator DF 37
Stratum Information
Stratum Population Sampling
Index Grade N Obs Total Rate
1 7 20 1824 1.10%
2 8 9 1025 0.88%
3 9 11 1151 0.96%
Class Level Information
Class
Variable Levels Values
Kids 4 1 2 3 4
ANOVA for Dependent Variable Spending
Sum of Mean
Source DF Squares Square F Value Pr > F
Model 4 94479.8 23619.94 40.38 <.0001
Error 35 20472.5 584.93
Corrected Total 39 114952.3
Ice Cream Spending Analysis 58
Stratified Simple Random Sample Design
11:23 Saturday, October 21, 2000
The SURVEYREG Procedure
Regression Analysis for Dependent Variable Spending
Tests of Model Effects
Effect Num DF F Value Pr > F
Model 4 124.85 <.0001
Intercept 1 150.95 <.0001
Income 1 326.89 <.0001
Kids 3 0.99 0.4081
NOTE: The denominator degrees of freedom for the F tests is 37.
Estimated Regression Coefficients
Standard
Parameter Estimate Error t Value Pr > |t|
Intercept -26.086882 2.44108058 -10.69 <.0001
Income 0.776699 0.04295904 18.08 <.0001
Kids 1 0.888631 1.07000634 0.83 0.4116
Kids 2 1.545726 1.20815863 1.28 0.2087
Kids 3 -0.526817 1.32748011 -0.40 0.6938
Kids 4 0.000000 0.00000000 . .
NOTE: The denominator degrees of freedom for the t tests is 37.
Matrix X'WX is singular and a generalized inverse was used to solve the normal equations.
Estimates are not unique.
Ice Cream Spending Analysis 59
Stratified Simple Random Sample Design
11:23 Saturday, October 21, 2000
Obs Parameter Estimate StdErr DenDF tValue Probt
1 Intercept -26.086882 2.44108058 37 -10.69 <.0001
2 Income 0.776699 0.04295904 37 18.08 <.0001
3 Kids 1 0.888631 1.07000634 37 0.83 0.4116
4 Kids 2 1.545726 1.20815863 37 1.28 0.2087
5 Kids 3 -0.526817 1.32748011 37 -0.40 0.6938
6 Kids 4 0.000000 0.00000000 37 . .
Analysis of Ice Cream Spending 60
11:23 Saturday, October 21, 2000
The SURVEYMEANS Procedure
Data Summary
Number of Strata 3
Number of Observations 40
Sum of Weights 4000
Class Level Information
Class
Variable Levels Values
Group 2 less more
Stratum Information
Stratum Population Sampling
Index Grade Total Rate N Obs Variable N
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
1 7 1824 1.10% 20 Spending 17
Group=less 14
Group=more 3
2 8 1025 0.88% 9 Spending 7
Group=less 0
Group=more 7
3 9 1151 0.96% 11 Spending 9
Group=less 4
Group=more 5
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Statistics
Std Error
Variable Mean of Mean Sum Std Dev
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Spending 9.770542 0.541381 32139 1780.792065
Group=less 0.515404 0.067092 1695.345455 220.690305
Group=more 0.484596 0.067092 1594.004040 220.690305
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Domain Analysis: Indicator
Std Error
Indicator Variable Mean of Mean Sum Std Dev
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Nonrespondent Spending . . . .
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Analysis of Ice Cream Spending 61
11:23 Saturday, October 21, 2000
The SURVEYMEANS Procedure
Domain Analysis: Indicator
Std Error
Indicator Variable Mean of Mean Sum Std Dev
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
Nonrespondent Group=less . . . .
Group=more . . . .
Respondent Spending 9.770542 0.652347 32139 3515.126876
Group=less 0.515404 0.067257 1695.345455 221.232029
Group=more 0.484596 0.067257 1594.004040 221.232029
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
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