The questionable claim
A report averages campaign conversion percentages and presents it as the overall conversion rate.
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
Use sum(conversions)/sum(clicks)=54/900=6%. Taking the simple mean of Search 10%,Social 2%,Email 10% gives 7.33%, a different equally weighted campaign statistic.
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.