The Project Manager is about to begin a project comprised of the following six activities: 
What is the estimated expected (mean) duration for activity E?
Definitions:
Breastfed Newborn
An infant who receives nourishment through breastfeeding, consuming human breast milk as their primary source of nutrition.
Brown Adipose Tissue
A type of fat tissue in the human body that produces heat by burning calories, playing a significant role in thermoregulation and energy expenditure.
Environmental Temperature
Refers to the temperature of the surrounding environment, which can influence biological and physical processes.
Gestational Age
The age of an embryo or fetus calculated from the beginning of the pregnant individual's last menstrual period.
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