Review the database NCbirths. Describe the limitations that may exist if this database is used as a sample of all North Carolina births.
- Conduct an examination of the impact of smoking and marital status on birthweight using Analysis of Variance as described in chapter XV of the online textbook.
- Construct a chi-square analysis of the relationship between smoking and ethnicity as described in chapter XVII of the online textbook.
- Write a short report (1 to 2 pages for each variable) that includes the results of your analysis and answers the following questions:
- Write a research question appropriate for each analysis.
- What is the null and alternative hypothesis for each analysis?
- What were the results of each analysis? Describe what relationships, if any, were significant and the decision made concerning the null hypothesis.