Final answer:
The written publication used to estimate activity mandays is called an Activity Report. It records the amount of energy used by individuals over a certain period of time.
Step-by-step explanation:
The written publication used to estimate activity mandays is called an Activity Report. The Activity Report is a document that records the amount of energy used by individuals over a certain period of time, typically 24 hours. It includes calculations for average energy use by males and females, as well as the average energy use in calories per day.