Based on prior knowledge, the feature "duration" in the given task refers to the duration of a particular credit, measured in months. To analyze the relationship between the feature and the target variable, we can consider the following approach:

1. Divide the range of the "duration" feature into appropriate ranges based on existing knowledge or domain expertise.

2. Calculate the average duration for each target class.

3. Select five typical duration values that represent each target class ('yes' and 'no').

Based on this analysis, here is the dictionary with the requested details:

```json
{
	"yes": [20.0, 25.0, 30.0, 35.0, 40.0],
	"no": [5.0, 10.0, 15.0, 45.0, 50.0]
}
```

Please note that the actual values would depend on the dataset being analyzed and the specific ranges determined during the exploratory analysis.