Free practice · ordering · medium

Practice

Order an outlier investigation

Arrange the steps for handling an unusual value safely.

Response-time distribution

Most tickets cluster below seven hours, with one long delay

Ordered response hours

Ticket 12 h
Ticket 23 h
Ticket 34 h
Ticket 44 h
Ticket 55 h
Ticket 65 h
Ticket 76 h
Ticket 830 h

The 30-hour observation creates a long right tail. Investigate it before deciding whether it is an error, exception, or valid rare case.

Arrange in the correct order
  1. 1. Document the decision and impact
  2. 2. Choose a justified treatment
  3. 3. Compare summaries with and without the value
  4. 4. Investigate the related business event
  5. 5. Verify the source value and unit