1 Regresion Simple

1 Regresion Simple - Regresin Lineal Simple BlancaMorales...

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Regresión Lineal Simple Blanca Morales
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Relación Causa-Efecto Pasado Presente
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Uno de los Objetivos Encontrar una ecuación que  ayude a estimar o pronosticar  a la variable dependiente (Y)  basandose en datos de esta y  de una variable independiente  (X)
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Relación Causa-Efecto Precio Índice 0.52 60.31 0.20 942.89 1.81 35.43 0.24 566.20 0.08 25.89 0.07 391.87 1.06 19.25 0.40 969.23 1.02 65.77 0.26 980.43 1.85 71.06 0.83 260.84 ¿Cuál es la  variable que se  desea estimar?
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Gráfica de dispersión Índice
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Gráfica de dispersión Índice
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Ecuación
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Datos X Y ( X - Prom ) ( X - Prom ) 2 ( Y - Prom ) ( X - Prom ) * ( Y - Prom ) Precio Índice 0.52 60.31 -0.18 0.03 -305.45 53.45 0.20 942.89 -0.50 0.25 577.13 -285.68 1.81 35.43 1.12 1.24 -330.33 -368.32 0.24 566.20 -0.46 0.21 200.44 -91.20 0.08 25.89 -0.62 0.38 -339.87 209.02 0.07 391.87 -0.63 0.39 26.11 -16.32 1.06 19.25 0.37 0.13 -346.51 -126.48 0.40 969.23 -0.30 0.09 603.47 -178.02 1.02 65.77 0.33 0.11 -299.99 -97.50 0.26 980.43 -0.44 0.19 614.67 -267.38 1.85 71.06 1.16 1.33 -294.70 -340.38 0.83 260.84 0.14 0.02 -104.92 -14.16 Suma = 8.34 4389.2 4.36 -1522.96 Media = 0.70 365.76 n = 12 12
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Datos X Y Ŷ Y - Ŷ Precio Índice 0.52 60.31 426.86 -366.55 0.20 942.89 538.59 404.30 1.81 35.43 -23.52 58.95 0.24 566.20 524.62 41.58 0.08 25.89 580.48 -554.59 0.07 391.87 583.97 -192.10 1.06 19.25 238.33 -219.08 0.40 969.23 468.76 500.47 1.02 65.77 252.30 -186.53 0.26 980.43 517.64 462.79 1.85 71.06 -37.49 108.55 0.83 260.84 318.63 -57.79 Suma = 8.34 4389.2 4389.2 0.00 Media = 0.70 365.76 365.76
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Prueba Global o “F” Se tienen que encontrar 3 variaciones. 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 1 1 0 ˆ X Y β + = ε + + = 1 1 0 ˆ X Y
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Prueba Global o “F” 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 Y Y ˆ Y
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Prueba Global o “F” 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 Y Y ˆ Y
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Prueba Global o “F” 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 Y Y ˆ Y
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1 Regresion Simple - Regresin Lineal Simple BlancaMorales...

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