A run chart could be used to keep a tally of manufacturing defects that occur based on the day of the week.

Run Chart

A graphical tool used in process improvement that displays observed data in a time sequence to identify trends or patterns over time.

Manufacturing Defects

Imperfections or errors in a product that occur during its manufacturing process, resulting in a departure from intended design or function.

Day Of The Week

A specific day within the weekly cycle, often associated with particular activities, cultural meanings, or religious observances.