(Answered) Questionthe table below gives the quarterly enrollment in a

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The table below gives the quarterly enrollment in a major American business college for the period 2007-2010.

Year	Winter	Spring	Summer	Autumn
2007	2033	1871	714	2318
2008	2174	2069	840	2413
2009	2370	2254	927	2704
2010	2625	2478	1136	30

a) Draw to scale a time series graph representing the above data.

b) Using the ratio-to-moving-average method, determine the quarterly seasonal indices.

c) Interpret the quarterly pattern of enrolment

d) Compute the trend equation.

e) Forecast the 2011 enrolment by quarter.

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