Based on prior knowledge, insulin levels can be an important indicator for diabetes. Higher levels of insulin in the body can indicate insulin resistance, which is commonly associated with type 2 diabetes. 

To analyze the relationship between the Insulin feature and the target variable, we can examine the distributions of insulin levels for individuals with and without diabetes.

Here is the dictionary with the requested details:

```json
{
	"yes": [24.6, 56.2, 83.5, 102.4, 147.2],
	"no": [3.3, 11.8, 15.6, 20.5, 32.6]
}
```

In this case, these are just example values and ranges based on general knowledge. The actual values might vary depending on the dataset and its specific characteristics.