Data Were Gathered From A Simple Random Sample Of Cities The Variables Are Violent Crime Crimes Per 100 000 Population 1 (50.53 KiB) Viewed 45 times
Data Were Gathered From A Simple Random Sample Of Cities The Variables Are Violent Crime Crimes Per 100 000 Population 2 (59.69 KiB) Viewed 45 times
Data were gathered from a simple random sample of cities. The variables are Violent Crime (crimes per 100,000 population), Police Officer Wage (mean $/hr), and Graduation Rate (%). Use the accompanying regression table to answer the following questions consider the coefficient of Police Officer Wage. Complete parts (a) and (b). Click to view the regression table. OC. Ho: Bofficer = 0 HA: Bofficer 0 www a) State the standard null and alternative hypotheses for the true coefficient of Police Officer Wage. OA. Ho: Bofficer #0 HA: Bofficer = 0 B. Ho: Bofficer = 0 HA: Bofficer <0 0.17 of 1 t= (Type an integer or a decimal. Do not round.) b) Test the null hypothesis (at a = 0.05) and state your conclusion. First find the test statistic, t. D. Ho: Bofficer = 0 HA: Bofficer #0
Regression Table Dependent variable is: Violent Crime R squared= 37.8% R squared (adjusted) = 40.0% s = 129.6 with 37 degrees of freedom Source Regression Residual Variable Intercept Police Officer Wage Graduation Rate Violent Crime Graduation Rate Police Officer Wage Violent Crime 800- 600- 400- 200- 0+ Sum of Squares df 701624 2 621029 50 . . 60 Coeff 1377.99 9.32 -16.33, 37 70 Graduation Rate Mean Square 350812 4.463 2.800 SE (Coeff) t-ratio P-value 186.7 7.38 <0.0001 2.09 0.0437 5.83 <0.0001 Violent Crime 1.000 -0.636 0.116 16784.6 Correlations 80 F-ratio 20.9 Graduation Rate Police Officer Wage 1.000 0.256 Violent Crime 800- 600- 400- 200 of 10 .. 15 1.000 20 25 Police Officer Wage 30 35 SOU Q
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