As part of a study on transportation safety, the U.S. Department of Transportation collected dataon the number of fatal accidents per 1000 licenses and the percentage of licensed drivers underthe age of 21 in a sample of 42 cities. Data collected over a one-year period follow. These dataare shown in the table below.PercentFatal AccidentsPercentFatal AccidentsUnder 21per 1000 LicensesUnder 21per 1000 Licenses132.962174.1120.70882.198.0.885163.623121.652152.623112.09190.835172.62780.82183.83142.898.0.36881.267131.142153.2248.0.645101.0141.028100.493162.801141.443121.405183.6149.1.433101.926100.039141.6439.0.338162.943111.849121.913122.246152.814142.855132.634142.3529.0.926111.294173.256Managerial Reporta. Develop numerical and graphical summaries of the data.b. Use regression analysis to investigate the relationship between the number of fatal accidentsand the percentage of drivers under the age of 21. Discuss your findings.c. What conclusion and recommendations can you derive from your analysis?

Data for the samples of 42 cities given We have to find regression analysis.

Answered: As part of a study on transportation…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Photo from Vipin
Calculate the mean and median from the following table : Class Intervals Frequency 6.5- 7.5 5 7.5- 8.5 12 8.5– 9.5 25 9.5-10.5 48 10.5–11.5 32 11.5–12.5 12.5-13.5 1
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. a. Find the mean, median, and mode of this data. b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year. a. mean= 12,700; median= 13,156; no mode; the mean is the best choice because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628; the median is the best choice because it is not skewed by the high outlier. c. mean= 13,156; median= 12,700; no mode; the mean is the best choice because it is representative of the entire data set. d. mean= 13,156; median= 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
1. The following are the ages of 10 respondents in a survey. Age 16 25 35 40 65 18 35 58 44 29 Find the mean, median and mode of the ages.
The following pollution levels were found in water samples:1.4,1.7,1.8,1.9,2.2,2.2,2.3,2.4,2.6,2.6,2.7,2.8,2.9,3. 0,3.0,3.0,3.1,3.2,3.3,3.4,3.4,3.5,3.6,3.7,3.8 prepare an ordered stem and leaf plot for the data. Briefly describe the distribution of the data.
Determine whether the underlined value is a parameter or statistics : "In 2017 national survey on teenager pregnancies, 10% of respondents aged 14 to 17 reported that they have a child before the age of 16 yrs."
Draw a Frequency polygon, histogram and a cumulative frequency distribution for the following data: Class 7.1 to 7.3 Frequency 3 7.4 to 7.6 5 7.7 to 7.9 9. 8.0 to 8.2 14 8.3 to 8.5 11 8.6 to 8.8 6. 8.9 to 9.1
Use the following Frequency table to calculate the median. Class Frequency 2……4 4 5……7 6 8…….10 3 11…..13 2 14…..16 5
Determine which of the four levels of measurement ( norminal, ordinal, interval, ratio) is most appropriate for the data below. Years in which U.S. presidents were inaugurated
The mean birthweight of an infant is thought to be associated with the smoking status of the mother during the first trimester of the pregnancy. Consider the following data from mothers divided into four categories according to smoking habits, and the corresponding birthweights of their children. Group 1: Mother is a non smoker (NON): 7.5, 6.2, 6.9, 7.4, 9.2, 8.3, 7.6 Group 2: Mother is an ex-smoker (EX): 5.8, 7.3, 8.2, 7.1, 7.8 Group 3: Mother is a current smoker, smokes less than 1 pack per day (CUR < 1) 5.9, 6.2, 5.8, 4.7, 8.3, 7.2, 6.2 Group 4: Mother is a current smoker, smokes more than or equal to 1 pack per day (Cur ≥ 1) 6.2, 6.8, 5.7, 4.9, 6.2, 7.1, 5.8, 5.4 Using Stata test whether or not the mean birthweights are equal across all four groups at the alpha = 0.05 level. What are your null and alternative hypothesis? Ο HO: μ_1== μ_2 HA: μ_1=\= μ_2 O HO: μ_i== u_j for all i and j HA: μ_i=\= μ_j for all i and j O HO: μ_i == μ_j for all i and j HA: μ_i=\= μ_j for at least one i,j…
The highway speeds of 100 cars are summarized in the frequency distribution below. Find the estimated mean speed. Speed (mph) 30-39 40-49 50-59 60-69 70-79 Cars 3. 16 50 18 13 O A. 59.5 mph O B. 62.4 mph O C. 22.8 mph O D. 56.7 mph
Given the following list of data, what is the five-number summary?110, 111, 140, 190, 199, 204, 238, 270, 279, 310, 320 Select the correct answer below: Min Q1 Median Q3 Max 100 140 204 279 350 Min Q1 Median Q3 Max 110 111 204 279 300 Min Q1 Median Q3 Max 110 140 204 279 320

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS