Based on prior knowledge, higher levels of serum cholesterol are generally associated with an increased risk of heart disease. However, the specific ranges of values considered as "normal" or indicative of heart disease may vary depending on the context and medical guidelines. Therefore, it is important to consult medical experts or relevant research in order to determine the appropriate ranges for this analysis.

Assuming we have established the appropriate ranges, let's create a dictionary with the requested information:

```json
{
	"no": [160.5, 170.2, 180.1, 150.6, 165.8], 
	"yes": [200.3, 190.7, 220.9, 210.4, 195.2]
}
```

In this example, I have provided 5 typical cholesterol values for each target class ('no' and 'yes') to demonstrate the relationship between the feature (serum cholesterol) and the task (presence of heart disease).