Based on prior knowledge, high levels of fasting blood sugar (FastingBS) may be indicative of heart disease. To analyze the relationship between FastingBS and the presence of heart disease, we will consider the following:

- For the 'no' class (indicating no heart disease), typical values of FastingBS can be expected to be below 120 mg/dl.
- For the 'yes' class (indicating presence of heart disease), typical values of FastingBS can be expected to be above 120 mg/dl.

To generate the dictionary with typical values, here is a markdown code snippet:

```json
{
	"no": [90.5, 98.2, 105.3, 110.1, 117.8],
	"yes": [123.4, 131.7, 138.2, 145.9, 152.6]
}
```

Please note that these values are examples and should not be considered definitive, as they may vary depending on the specific context and data distribution.