If the following jobs are sequenced according to the first-come-first-served (FCFS) rule then the mean completion time in days for all jobs is (assume zero for today's date) 
Definitions:
Client Satisfaction Rating
A measure used to quantify the degree to which a client is happy with the products or services provided by a business, often influencing loyalty and retention.
Traditional Performance Systems
Performance evaluation methods that typically focus on financial metrics and short-term results, often overlooking broader or non-financial measures.
Limitations
The inherent restrictions or constraints that may impact the effectiveness, efficiency, or applicability of a process, study, or initiative.
DuPont Chart
A graphical representation used in financial analysis to display the components of the return on equity formula, helping to understand leverage, operational efficiency, and profitability.
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