The following table represents the quarterly value of, Ask an Expert

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The following table represents the quarterly value of healthcare claims (in R millions) against all medical health schemes for the period 2007 to 2010.

Year	Quarter 1	Quarter 2	Quarter 3	Quarter 4
2007	11.8	13.2	19.1	16.4
2008	10.9	12.4	22.4	17.8
2009	12.2	16.2	24.1	14.6
2010	12.8	14.5	20.8	16.1

(a) Calculate quarterly seasonal indexes for healthcare claims using the ratio-to- moving-average method.

(b) Derive a trendline using the method of least squares.

(d) Use Excel's Line with Marker option from the Insert > Chart tab to plot the actual healthcare claims values and the seasonally adjusted trend estimates of healthcare claims values.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91699446

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