Based on prior knowledge and analysis:

- Age is likely to have a significant impact on whether a person receives credit or not. Generally, younger individuals may have lower credit scores or limited credit history, making it more challenging for them to get approved for credit. On the other hand, older individuals may have more stable financial situations and higher credit scores, increasing their chances of receiving credit.

Based on this analysis, the dictionary can be formed as follows:

```json
{
	"yes": [25.0, 32.0, 27.0, 35.0, 31.0],
	"no": [45.0, 48.0, 42.0, 39.0, 44.0]
}
```

These age values are just hypothetical examples and should be considered as representative age ranges for the target classes "yes" and "no".