Use the following to answer questions
GE Transportation produces train engines for sale in countries around the world.After looking at the total market for train engines, the company found that different rail lines wanted different engines.Major rail lines in the USA and South America wanted engines to haul heavy freight.Rail lines in Sweden and Germany were interested in a cleaner, greener train engine.Rail lines operated by several Eastern European countries wanted train engines for running short distances between cities in their own country.GE Transportation is currently manufacturing its GE 4400 for heavy freight, its Hybrid Eco-Engine and its Dash 9 suited for short distances.
-If a GE Transportation researcher analyses monthly sales data for a four-year time frame and looks for periodic fluctuations, the researcher is doing a __________analysis.
A)trend
B)seasonal
C)cycle
D)random factor
E)regression

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Use the following to answer questions 
GE Transportation produces train engines for sale in countries around the world.After looking at the total market for train engines, the company found that different rail lines wanted different engines.Major rail lines in the USA and South America wanted engines to haul heavy freight.Rail lines in Sweden and Germany were interested in a cleaner, greener train engine.Rail lines operated by several Eastern European countries wanted train engines for running short distances between cities in their own country.GE Transportation is currently manufacturing its GE 4400 for heavy freight, its Hybrid Eco-Engine and its Dash 9 suited for short distances.
-If a GE Transportation researcher analyses monthly sales data for a four-year time frame and looks for periodic fluctuations, the researcher is doing a __________analysis.
A)trend
B)seasonal
C)cycle
D)random factor
E)regression

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The Answer of Use the following to answer questions 
GE Transportation produces train engines for sale in countries around the world.After looking at the total market for train engines, the company found that different rail lines wanted different engines.Major rail lines in the USA and South America wanted engines to haul heavy freight.Rail lines in Sweden and Germany were interested in a cleaner, greener train engine.Rail lines operated by several Eastern European countries wanted train engines for running short distances between cities in their own country.GE Transportation is currently manufacturing its GE 4400 for heavy freight, its Hybrid Eco-Engine and its Dash 9 suited for short distances.
-If a GE Transportation researcher analyses monthly sales data for a four-year time frame and looks for periodic fluctuations, the researcher is doing a __________analysis.
A)trend
B)seasonal
C)cycle
D)random factor
E)regression

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