The number of defects after a hotel room cleaning (sheets not straight, smears on mirror, missed debris on carpet, etc.) should be measured using what type of control chart?
A) x-bar chart
B) R-chart
C) p-chart
D) c-chart
E) either x-bar chart or R chart

Question

Quizplus · Accepted Answer

A c-chart is used for counting the number of defects per unit when the number of opportunities for defects is constant. In this scenario, each hotel room cleaning session is a unit with various opportunities for defects (e.g., sheets not straight, smears on mirror, missed debris on carpet), making the c-chart the appropriate choice for monitoring the number of defects.

The Number of Defects After a Hotel Room Cleaning (Sheets