Data Were Gathered From A Simple Random Sample Of Cities The Variables Are Violent Crime Crimes Per 100 000 Population 1 (27.19 KiB) Viewed 23 times
Data Were Gathered From A Simple Random Sample Of Cities The Variables Are Violent Crime Crimes Per 100 000 Population 2 (51.45 KiB) Viewed 23 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 S/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. a) State the standard null and alternative hypotheses for the true coefficient of Police Officer Wage. OA. Ho: Pofficer #0 HA: Bomber -0 OC. Ho: Pomoer=0 HA: Bofficer 0 b) Test the null hypothesis (at a = 0.05) and state your conclusion. First find the test statistic, t. t= (Type an integer or a decimal. Do not round.) OB. Ho: Pofficer 0 HA: Pomer <0 D. Ho: Pomor 0 HA: Pomicer #0
Regression Table Dependent variable is: Violent Crime R squared = 37.8% 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 R squared (adjusted) = 40.0% 60 Coeff 1377.99 9.32 -16.33 70 37 Graduation Rate Mean Square 350812 16784.6 SE (Coeff) 186.7 4.463 2.800 Violent Crime 1.000 -0.636 0.116 Correlations t-ratio 7.38 2.09 -5.83 80 Q F-ratio 20.9 Graduation Rate Violent Crime P-value <0.0001 0.0437 <0.0001 1.000 0.256 800- 600- 400 200- of 10- 15 Police Officer Wage 1.000 :. 20 25 Police Officer Wage 30 O o 2
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