Based on prior knowledge, the relationship between age and chronic heart failure (CHF) can vary. However, it is often observed that older individuals are more likely to develop CHF compared to younger individuals.

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

```json
{
    "no": [20.0, 32.0, 38.0, 45.0, 50.0],
    "yes": [65.0, 68.0, 72.0, 78.0, 83.0]
}
```

Please note that the values provided are just examples of typical age values for each target class (no and yes) related to myocardial infarction complications and chronic heart failure. The actual values may vary depending on the specific dataset and characteristics of the population being studied. 