Based on prior knowledge and analysis, I can provide the following information about the relationship between the feature SkinThickness and the task of determining whether a person has diabetes or not:

- For individuals without diabetes ('no' target class), typical values of the SkinThickness feature could range from 10 to 25 mm. 

- For individuals with diabetes ('yes' target class), typical values of the SkinThickness feature could range from 20 to 35 mm.

Based on this analysis, the dictionary would be as follows:

```json
{
    "yes": [20.0, 25.0, 30.0, 32.0, 35.0],
    "no": [10.0, 12.0, 18.0, 22.0, 25.0]
}
```

Please note that these values are only generalizations and may not reflect the entire dataset.