University : The University of Sydney UniLearnO is not sponsored or endorsed by this college or university.
Subject Code : ECMT1010
Assignment Task :

QUESTIONS 

1. Using the indicator variable, divide your sample into smoking and non-smoking subsamples. Produce a five-number summary of birth weight for each subsample. 

2. Compare the five-number summaries between the two subsamples. Briefly comment on what the summaries reveal about the location, dispersion and skewness of the birth weight distri- butions in the two subsamples. 

It is well-known that, on average, smoking by the mother during pregnancy lowers the birth weight of the child. To investigate this claim statistically, you will use a hypothesis test. 

3. Set up the null and alternative hypotheses. Make sure to define your notation clearly. 

4. Verify that the Central Limit Theorem applies. Carry out the hypothesis test using the appro- priate methodology, show your steps and state your conclusion.  

5. Does it follow from the hypothesis test that children have lower birth weights because their mothers smoking during pregnancy? Explain.   Suppose you are interested in investigating whether family income has any relationship to birth weight. 

6. Write down the population regression model for birth weight as a function of family income, taking care to define your notation clearly. 

7. Using appropriate software, estimate the birth weight regression. Use the table provided in the template to report your regression results.

 

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  • Posted on : September 21st, 2018

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