# Regression analysis

Not what you're looking for?

See the attached file.

6. The National Transportation Safety Board collects Data by state (Including the District of Columbia) on traffic fatalities. Part of this data is shown in the following table, along with potentially related factors including populations numbers of licensed drivers, number of resisted vehicles and total number of vehicle miles drive. (The complete data are available in the file Trafrfic.xls.) You have been asked to develop a model to help explain the factor that underlie traffic fatalities.

Vehicle

Licensed Registered miles

Traffic Population Drivers Vehicles traveled

State Fatalities (Thous) (Thous) (Thous) (Millions)

AL 1083 4219 3043 3422 48956

AK 85 606 443 508 4150

AZ 903 4075 2654 2980 38774

AR 610 2453 1770 1560 24948

ca 4226 31431 20359 23518 271943

cO 585 3656 2620 3144 33705

CT 310 3275 2205 2638 27138

DE 112 706 512 568 7025

DC 69 570 366 270 3448

FL 2687 13953 10885 10132 121989

a. Build a linear model to predict traffic fatalities based on all four potential explanatory variables as they are measured in the table. Evaluate the results for each regression parameter: Are the signs appropriate? Are the values different from zero?

##### Purchase this Solution

##### Solution Summary

Step-by-step method for regression analysis is discussed here. Regression coefficients, coefficient of determination, scatter diagram and significance of regression model are explained in the solution.

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.