A company's human resources department was interested in the average number of years that a person works before retiring. The sample of size 11 follows: 
What is the arithmetic mean?
Definitions:
Strike Picketing
The practice of workers standing outside their place of employment to protest working conditions or labor disputes.
Collective Bargaining
The process of negotiation between employers and a group of employees aimed at agreements to regulate working conditions.
Labor Dispute
A labor dispute is a disagreement between employers and employees regarding employment conditions, wages, work hours, or other aspects of worker rights and welfare.
FMLA
The Family and Medical Leave Act, a U.S. federal law that provides employees with unpaid, job-protected leave for family and medical reasons.
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