Construct the DuPont system of analysis using the following financial data for Key Wahl Industries and determine which areas of the firm need further analysis.
Key Financial Data 
Definitions:
Significance Level
A statistical measure of how likely it is that an observed difference could have occurred by chance.
Prison Population
The total number of individuals incarcerated in prison facilities at any given time.
Mean Age
The average age of a group of individuals or objects, calculated by summing their ages and dividing by the number of individuals.
Margin of Error
An expression of the amount of random sampling error in a survey's results, which describes the range in which the true population parameter is expected to lie.
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