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.
ncbirths
fage | mage | mature | weeks | premie | visits | marital | gained | weight | lowbirthweight | gender | habit | whitemom |
13 | younger mom | 39 | full term | 10 | not married | 38 | 7.63 | not low | male | nonsmoker | not white | |
14 | younger mom | 42 | full term | 15 | not married | 20 | 7.88 | not low | male | nonsmoker | not white | |
19 | 15 | younger mom | 37 | full term | 11 | not married | 38 | 6.63 | not low | female | nonsmoker | white |
21 | 15 | younger mom | 41 | full term | 6 | not married | 34 | 8 | not low | male | nonsmoker | white |
15 | younger mom | 39 | full term | 9 | not married | 27 | 6.38 | not low | female | nonsmoker | not white | |
15 | younger mom | 38 | full term | 19 | not married | 22 | 5.38 | low | male | nonsmoker | not white | |
18 | 15 | younger mom | 37 | full term | 12 | not married | 76 | 8.44 | not low | male | nonsmoker | not white |
17 | 15 | younger mom | 35 | premie | 5 | not married | 15 | 4.69 | low | male | nonsmoker | not white |
16 | younger mom | 38 | full term | 9 | not married | 8.81 | not low | male | nonsmoker | white | ||
20 | 16 | younger mom | 37 | full term | 13 | not married | 52 | 6.94 | not low | female | nonsmoker | white |
30 | 16 | younger mom | 45 | full term | 9 | not married | 28 | 7.44 | not low | male | nonsmoker | white |
16 | younger mom | 42 | full term | 8 | not married | 34 | 8.81 | not low | female | nonsmoker | white | |
16 | younger mom | 40 | full term | 4 | not married | 12 | 6 | not low | female | nonsmoker | not white | |
16 | younger mom | 38 | full term | 12 | not married | 30 | 7.13 | not low | female | nonsmoker | white | |
21 | 16 | younger mom | 38 | full term | 15 | not married | 75 | 7.56 | not low | female | smoker | white |
16 | younger mom | 40 | full term | 7 | not married | 35 | 6.88 | not low | male | smoker | white | |
14 | 16 | younger mom | 40 | full term | 12 | not married | 9 | 5.81 | not low | female | smoker | white |
16 | 16 | younger mom | 24 | premie | 5 | not married | 12 | 1.5 | low | male | nonsmoker | not white |
20 | 17 | younger mom | 40 | full term | 8 | not married | 20 | 8.25 | not low | female | nonsmoker | white |
18 | 17 | younger mom | 37 | full term | 10 | not married | 39 | 6.19 | not low | female | nonsmoker | not white |
17 | younger mom | 39 | full term | 10 | not married | 40 | 7 | not low | male | nonsmoker | not white | |
20 | 17 | younger mom | 40 | full term | 17 | not married | 38 | 7.19 | not low | male | nonsmoker | white |
20 | 17 | younger mom | 39 | full term | 9 | not married | 36 | 6 | not low | male | nonsmoker | not white |
17 | younger mom | 40 | full term | 15 | not married | 20 | 7.63 | not low | female | nonsmoker | not white | |
26 | 17 | younger mom | 38 | full term | 11 | not married | 30 | 9.5 | not low | female | nonsmoker | white |
17 | younger mom | 38 | full term | 12 | not married | 30 | 5.56 | not low | female | nonsmoker | not white | |
17 | younger mom | 39 | full term | 12 | not married | 50 | 7.5 | not low | male | nonsmoker | not white | |
20 | 17 | younger mom | 40 | full term | 10 | not married | 68 | 7.44 | not low | male | nonsmoker | not white |
31 | 17 | younger mom | 39 | full term | 12 | not married | 27 | 7.56 | not low | male | nonsmoker | white |
17 | 17 | younger mom | 38 | full term | 12 | not married | 22 | 6.06 | not low | male | nonsmoker | not white |
17 | younger mom | 42 | full term | 8 | not married | 72 | 7.44 | not low | male | smoker | white | |
19 | 17 | younger mom | 36 | premie | 15 | not married | 25 | 7 | not low | male | nonsmoker | not white |
20 | 17 | younger mom | 29 | premie | 6 | not married | 35 | 4.56 | low | male | nonsmoker | not white |
17 | 17 | younger mom | 29 | premie | 4 | not married | 10 | 2.63 | low | female | nonsmoker | not white |
19 | 17 | younger mom | 35 | premie | 3 | not married | 30 | 6.38 | not low | male | nonsmoker | white |
18 | 17 | younger mom | 35 | premie | 12 | not married | 25 | 7.25 | not low | male | nonsmoker | not white |
18 | 17 | younger mom | 31 | premie | 6 | not married | 1 | 1.56 | low | female | nonsmoker | white |
18 | younger mom | 42 | full term | 15 | not married | 27 | 7.44 | not low | male | nonsmoker | white | |
28 | 18 | younger mom | 38 | full term | 15 | not married | 30 | 6 | not low | female | nonsmoker | not white |
28 | 18 | younger mom | 41 | full term | 10 | not married | 11 | 6.5 | not low | female | nonsmoker | not white |
20 | 18 | younger mom | 43 | full term | 8 | not married | 50 | 7.31 | not low | female | nonsmoker | not white |
18 | younger mom | 41 | full term | 6 | not married | 41 | 7.88 | not low | male | nonsmoker | not white | |
25 | 18 | younger mom | 40 | full term | 6 | married | 20 | 6.19 | not low | male | nonsmoker | white |
20 | 18 | younger mom | 38 | full term | 6 | not married | 48 | 7 | not low | female | nonsmoker | white |
23 | 18 | younger mom | 37 | full term | 6 | married | 35 | 5.81 | not low | female | nonsmoker | white |
21 | 18 | younger mom | 38 | full term | 16 | not married | 40 | 7.44 | not low | female | nonsmoker | white |
21 | 18 | younger mom | 41 | full term | 10 | not married | 30 | 7.75 | not low | male | nonsmoker | not white |
24 | 18 | younger mom | 40 | full term | 15 | married | 57 | 8 | not low | female | nonsmoker | white |
20 | 18 | younger mom | 40 | full term | 11 | not married | 28 | 6.63 | not low | female | nonsmoker | white |
20 | 18 | younger mom | 38 | full term | 13 | not married | 60 | 8.31 | not low | male | nonsmoker | white |
21 | 18 | younger mom | 40 | full term | 12 | not married | 7.25 | not low | female | nonsmoker | not white | |
21 | 18 | younger mom | 40 | full term | 13 | not married | 10 | 5.5 | low | female | nonsmoker | white |
25 | 18 | younger mom | 42 | full term | 11 | not married | 35 | 7.81 | not low | female | nonsmoker | white |
20 | 18 | younger mom | 41 | full term | 9 | not married | 18 | 7 | not low | female | nonsmoker | not white |
21 | 18 | younger mom | 37 | full term | 15 | not married | 23 | 7.31 | not low | male | nonsmoker | white |
18 | younger mom | 39 | full term | 8 | not married | 26 |