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Get Full Access to Elementary Statistics - 12 Edition - Chapter 1.4 - Problem 28bb
Get Full Access to Elementary Statistics - 12 Edition - Chapter 1.4 - Problem 28bb

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# Solved: indicate whether the observational study used is

ISBN: 9780321836960 18

## Solution for problem 28BB Chapter 1.4

Elementary Statistics | 12th Edition

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Problem 28BB

Problem 28BB

indicate whether the observational study used is cross-sectional, retrospective, or prospective.

Drinking and Driving Study In order to study the seriousness of drinking and driving, a researcher obtains records from past car crashes. Drivers are partitioned into a group that had no alcohol consumption and another group that did have evidence of alcohol consumption at the time of the crash.

Step-by-Step Solution:
Step 1 of 3

Problem 28BB

Step1 of 3:

We have In order to study the seriousness of drinking and driving, a researcher obtains records from past car crashes. Drivers are partitioned into a group that had no alcohol consumption and another group that did have evidence of alcohol consumption at the time of the crash.

Step2 of 3:

We need to indicate whether the observational study used is cross-sectional, retrospective, or prospective.

Step3 of 3:

Let us understand what is cross sectional, retrospective and prospective

Consider,

1).Cross sectional: A cross-sectional study (also known as a cross-sectional analysis, transversal study, prevalence study) is a type of observational study that analyzes data collected from a population, or a representative subset, at a specific point in time that is, cross-sectional data.

2).Retrospective: The researcher looks at historical data for a group. Some of the people in this group have developed the disease, and some have not. This can result in finding out who has the disease and when they developed it.

3).Prospective: None of the subjects have the disease (or other outcome) being measured when the study commences data analysis happens after a period of time has elapsed.

This is a “Retrospective study” because, it looks back in time to a similar group of people (people involved in car crashes) to see how different exposures (drinking vs. no drinking) affected the overall outcome.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

Since the solution to 28BB from 1.4 chapter was answered, more than 470 students have viewed the full step-by-step answer. This full solution covers the following key subjects: study, consumption, Group, alcohol, Driving. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. The answer to “indicate whether the observational study used is cross-sectional, retrospective, or prospective.Drinking and Driving Study In order to study the seriousness of drinking and driving, a researcher obtains records from past car crashes. Drivers are partitioned into a group that had no alcohol consumption and another group that did have evidence of alcohol consumption at the time of the crash.” is broken down into a number of easy to follow steps, and 59 words. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The full step-by-step solution to problem: 28BB from chapter: 1.4 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Elementary Statistics was written by and is associated to the ISBN: 9780321836960.

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