### Analysis:

To determine the relationship between the feature AST_BLOOD and the presence of chronic heart failure, we need to analyze the data and understand the typical ranges of AST_BLOOD values for both the target classes 'yes' and 'no'.

Since there is no specific information provided about the ranges of AST_BLOOD values for chronic heart failure, we will analyze the data based on general medical knowledge. Typically, elevated levels of AST (Aspartate Aminotransferase) in the blood are associated with liver disease, muscle damage, and certain heart conditions. However, it is important to note that the relationship between AST_BLOOD and chronic heart failure may vary based on the specific dataset and population being studied.

### Dictionary:

Based on the analysis, we can generate the dictionary with typical AST_BLOOD values for each target class as follows:

```json
{
	"no": [15.6, 19.2, 22.8, 26.3, 30.1],
	"yes": [18.7, 23.4, 26.9, 31.5, 35.2]
}
```

Please note that the values provided in the dictionary are just examples and may not accurately represent the specific dataset being analyzed. It is important to use domain knowledge and statistical analysis techniques to determine the appropriate ranges for AST_BLOOD values associated with chronic heart failure.