# dacode / dacode-data-sa-055 - 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`. Analyze the data to calculate the mean and standard deviation of purchase amounts for two age groups: those over 65 years old and those under 25 years old. Perform an independent two-sample t-test to determine if there is a significant difference in purchase amounts between the two groups. Provide your response in the following format: """ { "Oldage Purchase Amount Mean": [...], "Youngage Purchase Amount Mean": [...], "Oldage Purchase Amount std": [...], "Youngage Purchase Amount std": [...], "T_Statistic": [...], "P_Value": [...] } """ 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