Final answer:
The statement is false; a c-chart is specifically used to monitor the count of defects in items that have opportunities for multiple defects, not the process output as a whole.
Step-by-step explanation:
The statement "A c-chart is used to monitor the number of defects per unit of process output" is false. The c-chart is actually used to monitor the number of defects per unit in a sample, but it is focused on counting the number of defects in items that have opportunities for more than one defect to occur. It is not specific to the output of the entire process. If a factory manager needed to understand how many products are defective versus how many are produced, they would be more likely to use a different type of control chart such as a p-chart or u-chart, which are designed to track the proportion of defective items or the number of defects per unit, respectively.