In a study of whether smoking causes lung cancer, researchers examined 2000 people. About half of them were smokers and about half of them were non-smokers. Four percent of the smokers developed heart disease by the end of the study period, whereas only one percent of the non-smokers developed heart diseases. Which of the following should be true if we we are to be able to use the results to infer that smoking causes heart disease?
In a study of whether smoking causes lung cancer, researchers examined 2000 people. About half of them were smokers and about half of them were non-smokers. Four percent of the smokers developed heart disease by the end of the study period, whereas only one percent of the non-smokers developed heart diseases. Which of the following should be true if we we are to be able to use the results to infer that smoking causes heart disease?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 13CYU
Related questions
Question
In a study of whether smoking causes lung cancer, researchers examined 2000 people. About half of them were smokers and about half of them were non-smokers. Four percent of the smokers developed heart disease by the end of the study period, whereas only one percent of the non-smokers developed heart diseases.
Which of the following should be true if we we are to be able to use the results to infer that smoking causes heart disease?
Group of answer choices
( ) The two groups of subjects should be random samples: one from the population of all smokers, and one from the population of all non-smokers.
( ) The researcher should know a statistical programming language such as R.
( ) The people who developed heart disease should be as similar as possible to those who did not develop heart disease.
( ) The smokers and the non-smokers should be as similar as possible with respect to every characteristic (other than smoking) that affects the chance of developing heart disease.
Expert Solution
Given
Four percent of the smokers developed heart disease by the end of the study period, whereas only one percent of the non-smokers developed heart diseases.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt