Question
Variables Entered/Removed a Model Variables Entered Variables Removed Method 1 RELEASED VS. DETAINED, GENDER OF DEFENDANT, AGE OF DEFENDANT AT ARREST, RACE OF DEFENDANT, #
Variables Entered/Removeda | |||
Model | Variables Entered | Variables Removed | Method |
1 | RELEASED VS. DETAINED, GENDER OF DEFENDANT, AGE OF DEFENDANT AT ARREST, RACE OF DEFENDANT, # PRIOR FELONY CONVICTIONSb | . | Enter |
a. Dependent Variable: # PRISON MONTHS-MAXIMUM | |||
b. All requested variables entered. |
Model Summary | ||||
Model | R | R Square | Adjusted R Square | Std. Error of the Estimate |
1 | .183a | .033 | .010 | 57.17214 |
a. Predictors: (Constant), RELEASED VS. DETAINED, GENDER OF DEFENDANT, AGE OF DEFENDANT AT ARREST, RACE OF DEFENDANT, # PRIOR FELONY CONVICTIONS |
ANOVAa | ||||||
Model | Sum of Squares | df | Mean Square | F | Sig. | |
1 | Regression | 23761.784 | 5 | 4752.357 | 1.454 | .206b |
Residual | 686417.174 | 210 | 3268.653 | |||
Total | 710178.958 | 215 | ||||
a. Dependent Variable: # PRISON MONTHS-MAXIMUM | ||||||
b. Predictors: (Constant), RELEASED VS. DETAINED, GENDER OF DEFENDANT, AGE OF DEFENDANT AT ARREST, RACE OF DEFENDANT, # PRIOR FELONY CONVICTIONS |
Coefficientsa | ||||||
Model | Unstandardized Coefficients | Standardized Coefficients | t | Sig. | ||
B | Std. Error | Beta | ||||
1 | (Constant) | 38.206 | 28.432 | 1.344 | .180 | |
GENDER OF DEFENDANT | 14.031 | 23.874 | .040 | .588 | .557 | |
AGE OF DEFENDANT AT ARREST | -.328 | .476 | -.049 | -.689 | .492 | |
RACE OF DEFENDANT | -5.135 | 7.999 | -.045 | -.642 | .522 | |
# PRIOR FELONY CONVICTIONS | 2.752 | 1.326 | .146 | 2.075 | .039 | |
RELEASED VS. DETAINED | 11.962 | 9.214 | .090 | 1.298 | .196 | |
a. Dependent Variable: # PRISON MONTHS-MAXIMUM |
Using the sentencing dataset, run a regression analysis and answer the following questions:
- Which independent variable(s) have a statistically significant effect on prison sentence length? Interpret the beta coefficient for these significant variable(s).
- What is the R2 for the model? Is this coefficient relatively high or low?
- Although nonsensical, interpret the beta coefficient for the intercept.
- Is multicollinearity impacting your results? Explain why or why not.
- Are there any influential cases in the dataset? Explain your answer.
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