# dacode / dacode-data-sa-052

- taskset: [dacode](https://harnessreport.com/tasks/dacode.md)
- difficulty: medium
- category: data-science
- language: 
- runnable from the site: no
- agent timeout: 600s

## Results by harness

_none yet_

## Instruction

```
All input files are under `/app`. Save your output file(s) under `/app/output`.

Perform a t-test to compare the average medical expenses between smokers and non-smokers to determine if smoking status has a significant impact on medical expenses. Use a significance level of 0.05. Based on the p-value, select either "Fail to reject null hypothesis" or "reject null hypothesis" as the result. Provide your results in the following format:

"""
{
    "T-Statistic": [...],
    "P-Value": [...],
    "result": [...]
}
"""
Save the json answer in `/app/output/answer.json`.
```
---
Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp