Essay
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. 
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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From Excel partial output,get the p-valu...View Answer
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