Anomaly detection with Z-scores
As a trading analyst, we're seeking to identify anomalous price points for trading opportunities. The higher the number of anomalous price points, the more opportunity (pricing arbitrage) potentially exists.
In our case, we've ascertained that any value with a Z-score greater than +3 is an anomalous price point that warrants further analysis, as this represents an opportunity for us to sell water at a premium price. Let's see how many opportunities we can identify!
If you lost progress, load the workbook 3_6_Z-score.twbx
from the Workbooks folder on the Desktop
This exercise is part of the course
Time Series Analysis in Tableau
Hands-on interactive exercise
Turn theory into action with one of our interactive exercises
