Business Forecasting
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- 2983
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- Fri May 15 2009
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Have a little read: ... BUSINESS FORECASTING (08BSP043) Data Given: Quarterly series of business investment in the manufacturing sector in the UK from the first quarter 1994 to the second quarter of 2008. Data is not seasonally adjusted. Prerequisites: Availability of SPSS software is required for output generation. SPSS Output is appended along with the solution to each question. Q1 Seasonal effects, Trends and Cycles The raw data given for the entire analysis is NOT seasonally adjusted. I have added an extra variable 'Time' for indicating the quarters, as a general time function for the entire 58 observations. As per the instructions given, the first 50 observations have been used for data modelling and the rest 8 has been reserved as holdback data. FIG.1 The above line graph depicts the plot of the raw data. We can see that there is a small presence of a cyclical trend as the data rises and falls for a non fixed period.
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