Exhibit 16.6.Thirty employed single individuals were randomly selected to examine the relationship between their age (Age)and their credit card debt (Debt)expressed as a percentage of their annual income.Three polynomial models were applied and the following table summarizes Excel's regression results. 
Refer to Exhibit 16.6.For the cubic model,Debt = β0 + β1Age + β2Age2+ β3Age3 + ε,the following Excel partial output is available.What is the conclusion when testing the individual significance of Age3?
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Techniques or methods used to control an individual's level of stress, often for the purpose of improving everyday functioning.
Time Manager
A person or tool that effectively organizes and plans how to divide time between specific activities to maximize productivity and efficiency.
High Priority Task
A task that is deemed to be of significant importance, requiring immediate attention and action.
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The accomplishment of tasks or objectives that align with one's goals, values, or responsibilities.
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