Would you mind please to explain how the examiner calculated the 11% and 1%(the growth from 2006 to 2007 base on quarter 3 trend figure was about 11%).In contrast the growth from quarter 2 of 2008 to 2009 again base on the trend values was less the 1%)This was the examiner explaination… but i could not make a clue from it. Secondly,he claim that there was a sudden increase in random variations in the last three analysed quarters … how ? This topic was giving me problem but i dont want to spare it …