A project manager for Durable Construction Co.is about to build a house involving the following six activities: 
What is the estimated expected (mean) duration for activity E?
Definitions:
Misery Index
An economic indicator created by summing the unemployment rate and inflation rate, aiming to provide a snapshot of the average citizen's economic well-being.
Unemployment Rate
The percentage of the total labor force that is unemployed but actively seeking employment and willing to work.
Employed
Employed refers to individuals who are working for pay or profit, engaging in a job or business, within a stipulated period.
Unemployed
Refers to individuals who are capable of working and willing to work but cannot find employment.
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