To analyze the relationship between the feature LBXGLU and the target variable (age group), we need to determine the appropriate ranges of LBXGLU values for each age group - 'Adult' and 'Senior'. 

However, without specific age cutoffs mentioned for distinguishing between 'Adult' and 'Senior', it is difficult to determine the ranges based solely on the feature description.

For blood glucose levels, a commonly used range to differentiate between normal and abnormal values is as follows:
- Fasting blood glucose levels less than 100 mg/dL (5.6 mmol/L) are typically considered normal.
- Fasting blood glucose levels between 100-125 mg/dL (5.6-6.9 mmol/L) indicate prediabetes.
- Fasting blood glucose levels of 126 mg/dL (7 mmol/L) or higher on two separate tests indicate diabetes.

Using this information, we can consider the following ranges for the 'Adult' and 'Senior' age groups:
- 'Adult': LBXGLU values between 65 and 125 mg/dL (3.6-6.9 mmol/L).
- 'Senior': LBXGLU values above 125 mg/dL (6.9 mmol/L).

Based on these ranges, we can create the dictionary as requested:

```json
{
	"Adult": [65.0, 85.0, 95.0, 105.0, 115.0],
	"Senior": [130.0, 140.0, 150.0, 160.0, 170.0]
}
```

Please note that these values are just examples and may not reflect the actual distribution of LBXGLU values for the given age groups.