a.
To find: The explanatory and response variables involved in the study.
a.
Answer to Problem 1CRE
The probability is 0.875.
Explanation of Solution
Given:
A study has been conducted to check if obese people are more likely to die in comparison of people who weigh less. A possible confounder is that the obese people are inactive and lazy
Calculation:
In this case, mortality rate is the response variable because it is dependent on the weight of the people. Thus, it could be conclude that mortality rate is a response variable and weight is an explanatory variable.
b.
To explain: Whether it could be concluded that weight is causing the increase in risk of death
b.
Answer to Problem 1CRE
No.
Explanation of Solution
Calculation:
Here, it cannot be said that weight is causing the increase in risk of death because there are various lurking factors like activity and wealth which may affect the weight and mortality rate. Thus, it is not possible to agree with the provided statement.
Want to see more full solutions like this?
Chapter 3 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Elementary Statistics: Picturing the World (6th Edition)
STATS:DATA+MODELS-W/DVD
Statistics: The Art and Science of Learning from Data (4th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Basic Business Statistics, Student Value Edition
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman