Construct a graph of the time series along with the equation

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Reference no: EM131409717

U.S. cellular phone subscribership has been reported as shown below for the 1993-2004 period.

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a. Fit a linear trend equation to the time series. Using this equation, determine the trend estimate for 2010.

b. Fit a quadratic equation to the time series, then use the equation to determine the trend estimate for 2010.

c. Construct a graph of the time series along with the equations fitted in parts (a) and (b). Which equation appears to better fit the data?

Reference no: EM131409717

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