# Perform a descriptive analysis of the dependent variable of interest bwght.

Perform a descriptive analysis of the dependent variable of interest bwght.

Individual Datasets
STUDENT ID NUMBERS ENDING WITH 0, 1, 2, or 3
• ID Example: 123450, 123451, 123452 or 123453.
• Use the Wooldridge dataset affairs to analyse the determinants of extramarital affairs.
• Find further details on your dataset:
https://www.rdocumentation.org/packages/wooldridge/versions/1.4-2
• Follow the task step details from page 1 along with the following:
1. Perform a descriptive analysis of the dependent variable of interest.
2. Estimate the model and give an economic interpretation of the estimated coefficients.
naffairs = 0 + 1yrsmarr + 2age + 3male + 4kids + 5relig + 6ratemarr + u
Compute averages of each explanatory variables included in the model. According to
the estimated model, how many extramarital affairs does an individual with average
characteristics is predicted to have? Report results for males and females separately.
3. Test whether religiousness (relig) and marriage satisfaction (ratemarr) have no effect
on the expected number of extramarital affairs.
4. Test whether there is a difference in extramarital affairs between males and females.
5. Test for Multicollinearity and Heteroskedasticity as described in general instructions.
STUDENT ID NUMBERS ENDING WITH 4 or 5
• ID Example: 123454 or 123455.
• Use the Wooldridge dataset campus to analyse the elasticity of crimes on campus.
• Find further details on your dataset:
https://www.rdocumentation.org/packages/wooldridge/versions/1.4-2
• Follow the task step details from page 1 along with the following:
1. Perform a descriptive analysis of the dependent variable of interest crime.
2. Estimate the model and give an economic interpretation of the estimated coefficients.
log(crime) = 0 + 1log(enroll) + 2priv + 3priv ∙ log(enroll) + u
Compute average enrolment in the dataset. According to the estimated model, what is
the expected number of crimes on a campus with average enrolment? Report results
for private and public colleges separately.
3. Test the following:
a. Are crimes elastic with respect to enrolment? (Hint 1> 1)
b. Test whether elasticity of crime with respect to enroll is the same in private and
public colleges.
4. Test for Multicollinearity and Heteroskedasticity as described in general instructions.
STUDENT ID NUMBERS ENDING WITH 6 or 7
• ID Example: 123456 or 123457.
• Use the Wooldridge dataset hprice2 to analyse the effect of pollution on house prices.
• Find further details on your dataset:
https://www.rdocumentation.org/packages/wooldridge/versions/1.4-2
• Follow the task step details from page 1 along with the following:
1. Perform a descriptive analysis of the dependent variable of interest price.
2. Estimate the model and give an economic interpretation of the estimated coefficients.
What can you say about house price elasticity with respect to property tax proptax and
pollution level nox?
log(price) = 0 + 1log(nox) + 2log(protax) + 3rooms + 4crime + u
Compute averages of explanatory variables included in the model. According to the
estimated model, what is the expected price of a house with average characteristics?
3. Test whether crime has any effect on house prices.
4. Test whether elasticity of house prices with respect to property tax is the same as the
elasticity of house prices with respect to pollution level.
5. Test for Multicollinearity and Heteroskedasticity as described in general instructions.
STUDENT ID NUMBERS ENDING WITH 8 or 9
• ID Example: 123458 or 123459.
• Use the Wooldridge dataset BWGHT to analyse the factors that affect the weight of
newborn babies.
• See the description of the dataset in statistical package, or find the same details
online: https://www.rdocumentation.org/packages/wooldridge/versions/1.4-2
• Follow the task step details from page 1 along with the following:
1. Perform a descriptive analysis of the dependent variable of interest bwght.
2. Estimate the model and give an economic interpretation of the estimated coefficients.
Construct a variable for the square of the family income.
bwght = 0 + 1cigs + 2faminc + 3famincsq + 4parity + 5male + u
Compute averages of explanatory variables included in the model. According to the
estimated model, what is the expected price of a house with average characteristics?
Calculate the turning point.
3. Test whether 4
and 5
are equal to zero.
4. Test whether cigs have any effect on bwght.
5. Test for Multicollinearity and Heteroskedasticity as described in general instructions.

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