Based on prior knowledge, let's assume that an age group of 65 and above will be considered as "Senior" and below 65 as "Adult".

To analyze the relationship between the feature DIQ010 and age group, we can look at the average DIQ010 values for each age group.

Here is the dictionary with the requested information:

```json
{
	"Adult": [2.5, 1.0, 1.5, 3.0, 2.0],
	"Senior": [2.0, 2.5, 1.0, 2.0, 1.5]
}
```

Please note that the values provided in the dictionary are arbitrary and for demonstration purposes only. In a real analysis, you would need to use actual data to determine the appropriate ranges of values for each age group.