The data below represent the call volumes over 16 quarters froma call center at a major financial institution. Develop aforecasting model for the volume of calls (in 000 units).
2010201120122013Q1473544628709Q2513582707725Q3582681773854Q4474557592661
(a) Create a time series graph showing the: (1) actual data, (2)trend line for the data, and (3) deseasonalized actual data. Labelthe graph appropriately.
(b) Develop the quarterly (Q1, Q2, Q3, Q4) indexes for thevolume of calls
(c ) Using the trend line you developed in Part (a), what areyour seasonally unadjusted and seasonally adjusted forecasts forthe four quarters of 2014?
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