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What were the lowest average account balance

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Reference no: EM131563995

Question: MODELING WITH DATA The following data gives the average account balance (in thousands of dollars) of a 401(k) investor from 1996 through 2002.

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a. Use QuartReg to find a fourth-degree polynomial regression model for the data. Let t = 0 correspond to 1996.

b. Plot the graph of A, using the viewing window [0, 6] × [0, 60].

c. When was the average account balance lowest in the period under consideration? When was it highest?

d. What were the lowest average account balance and the highest average account balance during the period under consideration?

Reference no: EM131563995

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