Sort Symptoms, Causes, Hypotheses, and Tests
Classify analytical statements as symptoms, possible causes, hypotheses, or evidence tests.
Sort each statement by its analytical role in the issue-tree workflow. Symptom Possible cause Testable hypothesis Evidence test Checkout completion fell from 68% to 54% after the mobile release. Brazilian users now wait 2.8 seconds longer on the payment page. The new payment script may be loading from the wrong regional CDN. The fraud check may be timing out for prepaid cards. If CDN routing caused the drop, latency should spike for mobile users in affected regions after release. If fraud timeout caused the drop, prepaid-card attempts should fail more often while other cards stay stable. Pull page-load logs by…
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