The data used is from college campuses. The variables used in the analysis below include: crime, total campus crime; enroll, total enrollment; police, employed officers. Use the estimated OLS models to answer the questions below:**Model A:**\[ln(\hat{crime}) = -6.631 + 1.270ln(enroll),\](Standard error in parentheses: $1.034$ for the intercept, $0.110$ for $ln(enroll)$)$n = 97; R^2 = .5804$**Model B:**\[ln(\hat{crime}) = -4.794 + .923ln(enroll) + .516ln(police),\](Standard error in parentheses: $1.112$ for the intercept, $0.144$ for $ln(enroll)$, $0.149$ for $ln(police)$)$n = 97; R^2 = .632$Using Model A, test the null hypothesis that elasticity of crime with respect to enrollment is unit elastic, i.e., equal to one (against a two-sided alternative). Calculate the t-statistic.

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Answered: he data used is from college campuses.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A magazine publishes restaurant ratings for various locations around the world. The magazine rates the restaurants for food, decor, service, and the cost per person. Develop a regression model to predict the cost per person, based on a variable that represents the sum of the three ratings. The magazine has compiled the accompanying table of this summated ratings variable and the cost per person for 25 restaurants in a major city. Complete parts (a) through (e) below. Click the icon to view the table of summated ratings and cost per person. ..... a. Construct a scatter plot. Choose the correct graph below. A. Ов. С. D. ACost ($) 90- ACost ($) 90- ACost ($) 90- ACost ($) 90- 0- 0- 90 90 90 90 Rating Rating Rating Rating b. Assuming a linear relationship, use the least-squares method to compute the regression coefficients b, and b,. bo = and b, (Round to two decimal places as needed.) c. Interpret the meaning of the Y-intercept, bo, and the slope, b,. Choose the correct answer below. O A.…
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. x 11.6 8.5 6.6 3.5 2.9 2.6 2.1 0.4 y 13.7 11.4 9.6 7 6.4 6.4 5.9 4.2 x = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation y = 0.85x +4.04. Use this equation to answer the following; Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 5.3 thousand automatic weapons? Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 7 thousand automatic weapons? Answer= Answer = Round to 3 decimal places.
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The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. x11.88.26.93.62.82.72.10.3y14.310.79.86.96.26.264.2x= thousands of automatic weapons y= murders per 100,000 residents This data can be modeled by the equation y=0.86x+3.9.Use this equation to answer the following; A) How many murders per 100,000 residents can be expected in a state with 5 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 6.4 thousand automatic weapons? Answer = Round to 3 decimal places.
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.8 8.1 7 3.7 2.7 2.8 2.6 0.4 14.3 11 10.1 7.1 6.1 6.2 6.4 4.6 I = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation y = 0.87x + 3.98. Use this equation to answer the following: Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 6.2 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.4 thousand automatic weapons? Answer = Round to 3 decimal places. Hint: Help Question Help: 9 Message instructor 田 @ 3 16
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Answer this question in R. Show as much of your work as possible.
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