A recent Gallup survey of a random sample of Americans (18 and older) found that the average number of alcoholic drinks consumed per week (drinks) by males was 4.2 and by females was 1.4.[¹] Suppose we use the underlying survey data to estimate a least-squares regression of the average number of drinks a person reports consuming per week (Drinks;) on a dummy variable equal to 1 if i is female and O otherwise (Female;). (Assume all respondents identify as either male or female.) The estimated regression line equation can be written as: Drinks = a +bFemale What is the unit of observation for the data used in the regression analysis? Gender A survey respondent O Drinking habits O Weeks
A recent Gallup survey of a random sample of Americans (18 and older) found that the average number of alcoholic drinks consumed per week (drinks) by males was 4.2 and by females was 1.4.[¹] Suppose we use the underlying survey data to estimate a least-squares regression of the average number of drinks a person reports consuming per week (Drinks;) on a dummy variable equal to 1 if i is female and O otherwise (Female;). (Assume all respondents identify as either male or female.) The estimated regression line equation can be written as: Drinks = a +bFemale What is the unit of observation for the data used in the regression analysis? Gender A survey respondent O Drinking habits O Weeks
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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![A recent Gallup survey of a random sample of Americans (18 and older) found that the average
number of alcoholic drinks consumed per week (drinks) by males was 4.2 and by females was 1.4.[¹]
Suppose we use the underlying survey data to estimate a least-squares regression of the average
number of drinks a person reports consuming per week (Drinks;) on a dummy variable equal to 1
if i is female and O otherwise (Female;). (Assume all respondents identify as either male or
female.)
The estimated regression line equation can be written as:
Drinks = a +bFemale
What is the unit of observation for the data used in the regression analysis?
Gender
A survey respondent
O Drinking habits
O Weeks](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3f08d3cb-03f2-44ac-afec-90ed33ecc605%2F5ed91fdc-bbc6-4a3e-961a-ef4a10b2574f%2F4dcwqd_processed.png&w=3840&q=75)
Transcribed Image Text:A recent Gallup survey of a random sample of Americans (18 and older) found that the average
number of alcoholic drinks consumed per week (drinks) by males was 4.2 and by females was 1.4.[¹]
Suppose we use the underlying survey data to estimate a least-squares regression of the average
number of drinks a person reports consuming per week (Drinks;) on a dummy variable equal to 1
if i is female and O otherwise (Female;). (Assume all respondents identify as either male or
female.)
The estimated regression line equation can be written as:
Drinks = a +bFemale
What is the unit of observation for the data used in the regression analysis?
Gender
A survey respondent
O Drinking habits
O Weeks
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