Sheet1
7.5 | Non-smokers |
6.1999998093 | Non-smokers |
6.8000001907 | Non-smokers |
7.4000000954 | Non-smokers |
9.1999998093 | Non-smokers |
8.3000001907 | Non-smokers |
7.5999999046 | Non-smokers |
5.8000001907 | Ex-smokers |
7.3000001907 | Ex-smokers |
8.1999998093 | Ex-smokers |
7.0999999046 | Ex-smokers |
7.8000001907 | Ex-smokers |
5.9000000954 | Light smokers |
6.1999998093 | Light smokers |
5.8000001907 | Light smokers |
4.6999998093 | Light smokers |
8.3000001907 | Light smokers |
7.1999998093 | Light smokers |
6.1999998093 | Light smokers |
6.8000001907 | Heavy smokers |
6.1999998093 | Heavy smokers |
5.6999998093 | Heavy smokers |
4.9000000954 | Heavy smokers |
6.1999998093 | Heavy smokers |
7.0999999046 | Heavy smokers |
5.8000001907 | Heavy smokers |
5.4000000954 | Heavy smokers |
Using the provided dataset below, determine whether the mean birthweight for infants differs significantly according to mothers’ smoking status by using a one way ANOVA in Stata. Make sure to include all 5 hypothesis testing steps in your writeup. If you found a significant difference, how might you determine which specific groups differ? Are there any potential problems with the method you have proposed?
· Define the parameter of interest.
· State the hypotheses
· Determine the test statistic and p-value considering any necessary assumptions
· Decide whether to reject or not reject the null hypothesis
· Clearly state a conclusion in the context of the problem
· Specific Comparisons: How would you figure out which specific groups differ?
· Potential Problems: What are the potential problems with the method you have proposed to figure out which groups differ?
Week 8 Written Assignment:
Criteria Satisfactory Needs Improvement Not Evident
Parameter of interest
(6% of Grade)
States the notation for the parameter and what the parameter represents
States the notation for the parameter OR what the parameter represents
Does not state the notation for the parameter AND what the parameter represents
Hypotheses
(16% of Grade)
States the null and alternative hypotheses using the appropriate notation and states what each means in the context of the primary research question
States the null and alternative hypotheses using the appropriate notation, but does not state what each means in the context of the primary research question
Does not state the null and alternative hypotheses using the appropriate notation
Test Statistic and P- Value
(26% of Grade)
Verifies that any necessary assumptions hold and correctly calculates the test statistic and p-value
There is an error in the checking of the assumptions OR does not correctly calculate the test statistic and p-value
There is an error in the checking of the assumptions AND does not correctly calculate the test statistic and p-value
The Decision
(11% of Grade)
Clearly states decision on rejecting null and the significance level of the test
Clearly states decision on rejecting null, but does not state the significance level of the test
Does not state decision on rejecting the null
Conclusion
(21% of Grade)
Utilizes appropriate language to state, in the context of the research question, what the decision means
There are errors in the interpretation of the decision in terms of the research question
Does not provide an interpretation of the decision in terms of the research question
Specific Comparisons
(10% of Grade)
Clearly states the steps to figure out which groups differ
There are errors or gaps in the proposed steps to figure out which groups differ
Did not state the steps to figure out which groups differ
Potential Problems
(10% of Grade)
Clearly identifies potential problems with the proposed comparison method
There are errors in the identification of potential problems with the proposed comparison method
Did not identify potential problems with proposed comparison method

Get help from top-rated tutors in any subject.
Efficiently complete your homework and academic assignments by getting help from the experts at homeworkarchive.com