The following data consist of relative fluorescent levels for PLC-zeta in sperm following 3 different types assisted reproductive technologies (A, B and C). Two different age groups for the men were recorded.
| Aged under 50 years | Aged 50 years and older | |||||||||||
| A | 6.8 | 12.3 | 4.9 | 12.5 | 9.7 | 5.7 | 7.8 | 9.1 | 7.2 | 2.5 | 8.4 | 7.6 |
| B | 16.5 | 18.2 | 14.2 | 17.6 | 10.2 | 16.9 | 8.7 | 5.7 | 10 | 7.2 | 5.5 | 11.2 |
| C | 8.2 | 13.8 | 7.4 | 11.2 | 10 | 6.9 | 4.4 | 8.6 | 10.2 | 8.8 | 4.2 | 7.4 |
Enter the data into jamovi in 3 columns, one containing the data, the second containing the letters A, B, C to indicate treatment, and the third coding for age group. Label and set data type appropriately.
- Carry out a two-way ANOVA to test for main effects and the interaction.
- Check the assumptions for the analysis. Are all 3 satisfied?
- Obtain a plot of the marginal means.
- Summarise fully the results of your analysis.
