This project explores statistical methods to analyze the fecundity of fruit flies (Drosophila melanogaster) using data collected by R.R. Sokal (Sokal & Rohlf, 1981). The dataset includes the per diem fecundity (eggs laid per female per day for the first 14 days) for 25 females from three genetic lines:
- RS (Resistant): Selected for resistance to DDT.
- SS (Susceptible): Selected for susceptibility to DDT.
- NS (Nonselected): Control strain with no selective breeding.
The primary research questions addressed are:
- Do the two selected lines (RS and SS) differ in fecundity from the nonselected line (NS)?
- Does the line selected for resistance (RS) differ in fecundity from the line selected for susceptibility (SS)?
Sokal, R.R., & Rohlf, F.J. (1981). Biometry (2nd ed.). San Francisco: W.H. Freeman, 239.
The project applies the following statistical techniques:
- One-way ANOVA: To compare the means across the three groups.
- Tukey’s HSD Post-Hoc Test: To identify pairwise differences after ANOVA.
- T-Test: To test differences between RS and SS groups directly.
The analysis confirmed that:
- Significant differences exist between the NS line and the two selected lines (RS and SS).
- No significant difference was found between RS and SS lines.
This project was completed as a group effort by:
- Vladyslav Horbatenko ([email protected])
- Layba Naeem ([email protected])
- Maria Paz Buonomo Quiroga ([email protected])
- Rishni Mahendran ([email protected])
- Maxim Gutu ([email protected])
- Cojocaru Vlad ([email protected])
This was the final project for the Statistical Models course during Autumn Semester 2024. Final grade: 12.