ejercicio de estadistica

Año Trimestre Ventas

1 6.72 4.6

34.0 8.5002002 3 10.0 8.475 1.180

33.8 8.4504 12.7 8.450 1.503

33.8 8.4501 6.5 8.425 0.772

33.6 8.4002 4.6 8.513 0.540

2003 34.5 8.6253 9.8 8.675 1.130

34.9 8.7254 13.6 8.775 1.550

35.3 8.8251 6.9 8.900 0.775

35.9 8.9752004 2 5.0 9.038 0.553

36.4 9.1003 10.4 9.113 1.141

36.5 9.1254 14.1 9.188 1.535

37.0 9.2501 7.0 9.300 0.753

37.4 9.3502 5.5 9.462 0.581

2005 38.3 9.5753 10.8 9.587 1.126

38.4 9.6004 15.0 9.625 1.558

38.6 9.6501 7.1 9.688 0.733

38.9 9.7252006 2 5.7 9.663 0.590

38.4 9.6003 11.1 9.712 1.143

39.3 9.8254 14.5 9.888 1.466

39.8 9.9501 8.0 9.988 0.801

40.1 10.0252007 2 6.2 10.075 0.615

40.5 10.1253 11.4

Total de cuatro

trimestres

Promedio Movil de cuatro

trimestre

Promedio Movil

Centrado

Valor Estcional especifico

4 14.9

TrimestreAños

2002 2003 2004 2005 20061 0.772 0.775 0.753 0.7332 0.540 0.553 0.581 0.5903 1.180 1.130 1.141 1.126 1.1434 1.503 1.550 1.535 1.558 1.466

Factor de Ajuste= 4.00/Suma de las Medias = 4.00/4.008= 0.9979

Años20070.801 0.766 76.6490.615 0.575 57.467

1.138 113.7941.529 152.9174.008

Media Modificada

Media*Factor de Ajuste*100