Every prompt, tested and categorized.

A transparent spreadsheet forecast with assumptions you can change.

Turn analysis into a clear message with the right chart choices.

Design an experiment properly and interpret results without fooling yourself.

Describe the question; get a correct, explained query and test plan.

Generate a reproducible script to clean and validate a messy CSV.

Write unbiased questions and decide how you'll analyze them up front.

Choose the few metrics that drive decisions and lay them out.

A step-by-step plan to understand a dataset and answer a business question.

Describe what you want; get the formula, an explanation and edge-case handling.