Data were gathered from a simple random sample of cities. The variables are Violent Crime? (Crimes per?
Question:
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 considers the coefficient of Graduation Rate. Complete parts a through e.
Dependent variable is: Violent Crime R squared = 40.9% R squared (adjusted) = 43.2% s-129.6 with 37 degrees of freedom Coeff SE (Coeff) t-ratio P-value 1393.79181.7 Variable Intercept Police Officer Wage9.16 Graduation Rate 7.67
a) State the standard null and alternative hypotheses for the true coefficient of Graduation Rate.
b) What is the? T-statistic corresponding to this? Test?
c) Why is the? T-statistic negative?
d) What is the? P-value corresponding to this? T-statistic?
e) Test the null hypothesis? (At? =? 0.05)and state your conclusion.
Practicing Statistics Guided Investigations for the Second Course
ISBN: 978-0321586018
1st edition
Authors: Shonda Kuiper, Jeff Sklar