The seasonal indexes and actual quarterly turnover in r, Ask an Expert

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The seasonal indexes and actual quarterly turnover (in R millions) for 2008, 2009 and 2010 in the hotel industry in Cape Town are as follows:

Season	Seasonal index	2008	2009	2010
Summer	136	568	604	662
Autumn	112	495	544	605
Winter	62	252	270	310
Spring	90	315	510	535

(a) De-seasonalise the hotel industry turnover data for 2008 to 2010.

(b) Plot both the original and the de-seasonalised quarterly turnover data for the Cape Town hotel industry from 2008 to 2010 on the same axis.

(d) Estimate the seasonally adjusted turnover in the Cape Town hotel industry for the summer and autumn seasons in 2011.

(e) Repeat (b) above using the Insert > Chart > Line option in Excel.

(f) Re-compute the trendline equation in (c) using Excel's Add Trendline option.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91699409

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