Bonus assignment: Gender ratio
The following dataset was collected in Germany 1889. The table reports on the number of boys in 6115 families with 12 children each.
| Dataset: number of boys in families of 12 children |
| No of boys in a family |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| No of families |
7 |
45 |
181 |
478 |
829 |
1112 |
1343 |
1033 |
670 |
286 |
104 |
24 |
3 |
The bonus assignment: write a report presenting your analysis of the data. The following questions are meant to help you in structuring your report.
- Represent the data graphically.
- Test a simple model of equal sex ratio. Illustrate you results graphically.
- Test a model with unknown fixed sex ratio. Illustrate you results graphically.
- Test a model with the sex ratio randomly varying among the families according to a Beta-distribution. Illustrate you results graphically.
Written rapport
- Present your report in a nice readable form.
- Language: english or swedish.
- Submit electronically as a single pdf file to "serik at chalmers dot se".