# kramabench / kramabench-environment-hard-7 - taskset: [kramabench](https://harnessreport.com/tasks/kramabench.md) - difficulty: hard - category: data-science - language: - runnable from the site: no - agent timeout: 600s ## Results by harness _none yet_ ## Instruction ``` Under `/app/data`, consider the following files for analysis: * environmental-justice-populations.csv * malibu_beach_datasheet.csv * monthly_precipitations_boston.csv * monthly_precipitations_chatham.csv * water-body-testing-2014.csv * water-body-testing-2016.csv * water-body-testing-2018.csv * water-body-testing-2021.csv * water-body-testing-2023.csv * wollaston_beach_datasheet.csv What was the difference in bacterial exceedance rates (to 2 decimal places) for marine beach samples collected in 2023 between communities with more than 50% environmental justice (EJ) populations and those with less than 25% EJ populations? Save your EXACT NUMERIC answer AND NOTHING ELSE in the file `/app/answer.txt`. ``` --- 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