What is the value of the correlation coefficient? (Round your answer to 4 decimal places.) Assume that the best-fit line of the above data set is a good model for the study. For expectant mothers who smoke 11 cigarettes per day, what is the expected percentage of children who will develop asthma by the age of two. percent (Round your answer to 1 decimal place.) TH

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
icon
Related questions
Question
You are studying the effects of smoking by pregnant women on rates of asthma in their
children. You collect data on the number of cigarettes smoked per day and whether or not the
child developed asthma by the age of two. The data is below:
Smoked 1-5 cigarettes per day --- 9.2% developed asthma
Smoked 6-10 cigarettes per day --- 10.3% developed asthma
Smoked 11-20 cigarettes per day -- 25% developed asthma
Smoked 21-40 cigarettes per day --- 34.8% developed asthma
Smoked 41-60 cigarettes per day --- 38.4% developed asthma
In order to study the relationship between the number of cigarettes smoked by pregnant women per day and the
percentage of their children developed asthma by the age of two using statistical knowledge, we convert the above
data into the following format and see if we can obtain an adequate fit using linear regression.
Average number of cigarettes smoked per day 3 8
Percentage of children developed asthma
What is the value of the correlation coefficient?
Г
15-5 30.5 50.5
9.2% 10.3% 25% 34.8% 38.4%
(Round your answer to 4 decimal places.)
Assume that the best-fit line of the above data set is a good model for the study. For expectant mothers who smoke 11
cigarettes per day, what is the expected percentage of children who will develop asthma by the age of two.
percent (Round your answer to 1 decimal place.)
Transcribed Image Text:You are studying the effects of smoking by pregnant women on rates of asthma in their children. You collect data on the number of cigarettes smoked per day and whether or not the child developed asthma by the age of two. The data is below: Smoked 1-5 cigarettes per day --- 9.2% developed asthma Smoked 6-10 cigarettes per day --- 10.3% developed asthma Smoked 11-20 cigarettes per day -- 25% developed asthma Smoked 21-40 cigarettes per day --- 34.8% developed asthma Smoked 41-60 cigarettes per day --- 38.4% developed asthma In order to study the relationship between the number of cigarettes smoked by pregnant women per day and the percentage of their children developed asthma by the age of two using statistical knowledge, we convert the above data into the following format and see if we can obtain an adequate fit using linear regression. Average number of cigarettes smoked per day 3 8 Percentage of children developed asthma What is the value of the correlation coefficient? Г 15-5 30.5 50.5 9.2% 10.3% 25% 34.8% 38.4% (Round your answer to 4 decimal places.) Assume that the best-fit line of the above data set is a good model for the study. For expectant mothers who smoke 11 cigarettes per day, what is the expected percentage of children who will develop asthma by the age of two. percent (Round your answer to 1 decimal place.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 15 images

Blurred answer
Knowledge Booster
Regression Model
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, economics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
Economics
ISBN:
9780190931919
Author:
NEWNAN
Publisher:
Oxford University Press
Principles of Economics (12th Edition)
Principles of Economics (12th Edition)
Economics
ISBN:
9780134078779
Author:
Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher:
PEARSON
Engineering Economy (17th Edition)
Engineering Economy (17th Edition)
Economics
ISBN:
9780134870069
Author:
William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher:
PEARSON
Principles of Economics (MindTap Course List)
Principles of Economics (MindTap Course List)
Economics
ISBN:
9781305585126
Author:
N. Gregory Mankiw
Publisher:
Cengage Learning
Managerial Economics: A Problem Solving Approach
Managerial Economics: A Problem Solving Approach
Economics
ISBN:
9781337106665
Author:
Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:
Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-…
Managerial Economics & Business Strategy (Mcgraw-…
Economics
ISBN:
9781259290619
Author:
Michael Baye, Jeff Prince
Publisher:
McGraw-Hill Education