To analyze the relationship between the feature ALT_BLOOD and the task of determining chronic heart failure, we need to consider the typical ranges of ALT_BLOOD values for patients with and without chronic heart failure. Since the feature is not well-defined, we will use our prior knowledge to determine the appropriate ranges of values.

Typically, ALT (Alanine Aminotransferase) is an enzyme found in the liver that is released into the bloodstream when there is liver damage. Elevated ALT levels can indicate liver disease or injury. While there may not be a direct relationship between ALT_BLOOD and chronic heart failure, elevated ALT levels can be related to certain conditions or risk factors associated with heart failure, such as fatty liver disease, alcohol abuse, or certain medications.

In order to create the dictionary, we will assume the following ranges for ALT_BLOOD values:

- ALT_BLOOD values between 0 and 40 IU/L are considered normal or low.
- ALT_BLOOD values between 41 and 100 IU/L are considered mildly elevated.
- ALT_BLOOD values between 101 and 200 IU/L are considered moderately elevated.
- ALT_BLOOD values between 201 and 400 IU/L are considered significantly elevated.
- ALT_BLOOD values above 400 IU/L are considered extremely elevated.

Based on this analysis, we can generate the required dictionary:

```json
{
	"no": [10.0, 20.0, 30.0, 35.0, 38.0],
	"yes": [50.0, 80.0, 120.0, 180.0, 300.0]
}
```

Please note that these values are provided as examples and should not be considered as definitive indicators of chronic heart failure. This analysis is based on general knowledge and may not include all possible scenarios. Consultation with a medical professional is advised for accurate diagnosis.