The National Highway Traffic Safety Administration (NHTSA) conducted a survey to learn about how drivers throughout the United States are using seat belts (Associated Press, August 25, 2003). Sample data consistent with the NHTSA survey are as follows: Question Drivers Using Seat belts: Region Yes No Northeast 148 52 Midwest 162 54 South 296 74 West 252 48 total 858 228 Question - Part a For the United States, what is the probability that a driver is using a seat belt? My answer is 0.79 My Question Assuming the total number of drivers in each region is the same, do you see any reason why the probability estimate in part (a) might be too high?

The National Highway Traffic Safety Administration (NHTSA) conducted a survey to learn about how drivers throughout the United States are using seat belts (Associated Press, August 25, 2003). Sample data consistent with the NHTSA survey are as follows: Question Drivers Using Seat belts: Region Yes No Northeast 148 52 Midwest 162 54 South 296 74 West 252 48 total 858 228 Question - Part a For the United States, what is the probability that a driver is using a seat belt? My answer is 0.79 My Question Assuming the total number of drivers in each region is the same, do you see any reason why the probability estimate in part (a) might be too high?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

A sample of residents of Santa Monica were asked two questions, whether they had taken a course at Santa Monica College and what type of job they had or hoped to have. Their responses are summarized in the two-way data table below. Tech Industry Health Care Job Business/Finance Other Job Job Category Has taken a 53 104 93 class at SMC 69 Has not taken a class at SMC 82 28 38 151 Use the table to answer the following questions, a. What is the probability that a randomly chosen person has not taken a class at SMC and answered health care job. [Select] b. What is the probability that a randomly chosen person has taken a class at SMC or answered Tech Industry Job? I Select c. Would it be unusual for a person to have not taken a class at SMC and answered health care job? Why or why not? ( Select]
In an article that appears on a website,† Carlton Gunn, a public defender in Seattle, Washington, wrote about how he uses statistics in his work as an attorney. He states the following. I personally have used statistics in trying to challenge the reliability of drug testing results. Suppose the chance of a mistake in the taking and processing of a urine sample for a drug test is just 1 in 100. And your client has a "dirty" (i.e., positive) test result. Only a 1 in 100 chance that it could be wrong? Not necessarily. If the vast majority of all tests given—say 99 in 100—are truly clean, then you get one false dirty and one true dirty in every 100 tests, so that half of the dirty tests are false. Define the following events as given below. TD = event that the test result is dirty TC = event that the test result is clean D = event that the person tested is actually dirty C = event that the person tested is actually clean (a) Using the information in the quote, compute the following…
Identify the sources of data for the following cases by writing a tick (V) inside the table ( Name Experiment Case Studies Annual Report Internet Questionnaire Primary Source Secondary Source
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 104 Some chance but probably not 141 158 A 50-50 chance 454 499 A good chance 742 729 Almost certain 1168 764 What percent of females thought that they were almost certain to be married in the next 10 years?
The sample mean is the point estimator of а. O b. o О с. р С. O d. H
Name the method of estimating probabilities based on experience or institution.
slear Iodules/dass party/student party.php?partyCode PUHOWEJOZA&assignment id-#questi Disco Edit Profile - Instagr.. 9 Racing Games yhttps://search.yaho... Games Which value is the difference between the MEAN and MEDIAN for this data set? 45.5, 35.6, 26.8, 41.8, 51.4, 71.9 es ) A) 0.95 B) 1.35 1.85 D) 2.15 Submit Celc
A radio talk show asks listeners to call in and say whom they are going to vote for in the next presidential election. Of the 587 callers, 71% say they favor one of the candidates, while 29% favor the other. Does this convince you that the first candidate is likely to win the election? Why or why not? What is statistical issue is involved here?
The Wall Street Journal Corporate Perceptions Study 2011 surveyed readers and asked how each rated the quality of management and the reputation of the company for over 250 worldwide corporations. Both the quality of management and the reputation of the company were rated on an excellent, good, and fair categorical scale. Assume the sample data for 200 respondents below applies to this study. Quality of Management Reputation of Company Excellent Good Fair Excellent 40 25 5 Good 35 28 10 Fair 25 17 15 (a) Use a 0.05 level of significance and test for independence of the quality of management and the reputation of the company. State the null and alternative hypotheses. H0: Quality of management is not independent of the reputation of the company.Ha: Quality of management is independent of the reputation of the company. H0: Quality of management is independent of the reputation of the company.Ha: Quality of management is not independent of the…
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was "What do you think are the chances you will be married in the next 10 years?" Here is a two-way table of the responses by gender: HP S Ass Opinion Female Male cha Almost no chance 119 114 139 156 Some chance but probably not A 50-50 chance 446 493 A good chance Almost certain 718 728 1177 759 a. How many individuals are described in this table? b. How many females were among the respondents? C. The percent of females among the respondents was about
b. What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 19 foot talL? d. What is the probability that a randomly selected giraffe will be shorter than 18.7 feet tall? e. What is the probability that a randomly selected giraffe will be between 19 and 19.8 feet tall? f. The 85th percentile for the height of giraffes is ft.