The questionable claim
A fictional retail exercise is listed as a paid client engagement with a claimed 30% profit improvement.
Investigate
Identify the unit of analysis, denominator, population or information boundary. What extra evidence would be needed? Write a corrected statement first.
Diagnosis and repair
Label it Independent learning project using fictional data. Describe verified work and observed outputs; do not invent employment, clients or business impact. Resume guidance does not guarantee interviews or a job.
Prevention
Add a test or review question that catches the error before publication. Save the original and corrected explanation so your reasoning is auditable.
Try the activity before reading its reference. Keep your sources, commands and assumptions with your work. Companion activities are unsaved self-practice and do not award a certificate or change lesson progress.