Based on prior knowledge, the serum AlAT (ALT_BLOOD) level can provide insights into the presence of chronic heart failure. 

To analyze the relationship between the feature and the task, we need to examine the ALT_BLOOD values for patients with and without chronic heart failure. 

Assuming higher ALT_BLOOD values indicate a higher likelihood of chronic heart failure, we can break down the analysis as follows:

1. For patients without chronic heart failure ('no'):
   - Typical ALT_BLOOD values: [10.2, 11.5, 12.7, 13.9, 14.6]

2. For patients with chronic heart failure ('yes'):
   - Typical ALT_BLOOD values: [15.8, 17.1, 19.4, 20.6, 22.3]

Based on this analysis, we can create the dictionary in the required format:

```json
{
	"no": [10.2, 11.5, 12.7, 13.9, 14.6],
	"yes": [15.8, 17.1, 19.4, 20.6, 22.3]
}
```