# dacode / dacode-data-sa-051 - 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 assess whether there is a significant difference in average medical expenses between males and females. Apply a 0.05 significance level. Depending on the p-value, choose between "Fail to reject null hypothesis" and "reject null hypothesis" for the result. Format your answer as follows: """ { "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