Proyecto
Páginas (X) | Precio (Y) | XY | X² | Y² | Ӯ |
50 | 40 | 2000 | 2500 | 1600 | 34.78 |
80 | 50 | 4000 | 6400 | 2500 | 53.98 |
74 | 38 | 2812 | 5476 | 1444 | 50.14 |
70 |45 | 3150 | 4900 | 2025 | 47.58 |
44 | 25 | 1100 | 1936 | 625 | 30.94 |
65 | 39 | 2535 | 4225 | 1521 | 44.38 |
60 | 70 | 4200 | 3600 | 4900 | 41.18 |
38 | 17 | 646 | 1444 | 289 | 27.1 |55 | 20 | 1100 | 3025 | 400 | 37.98 |
58 | 64 | 3712 | 3364 | 4096 | 39.9 |
∑= 594 | ∑= 408 | ∑= 25,255 | ∑= 36,870 | ∑= 19,400 | ∑= 407.96 |
X̅= 59.4 Ӯ= 40.8
ECUACION DELA RECTA DEL MEJOR AJUSTE:
SXX= 36,870- (594)²10 = 1,586.4 SXY= 25,255- 594(408)10 = 1,019.8
β1= 1019.81586.4 = 0.64 β0= 40.8- 0.64 (59.4)= 2.78ỹ= 2.78 + O.64X
PRUEBA DE HIPOTESIS:
SYY= 19,400 – (408)²10 = 2,753.6 SCE= 2,753.6 – (1,019.8)²1,586.4 = 2,098.03
CME= 2,098.0310 - 2 = 262.25
ERRORESTANDAR:
Intercepción: 262.25(110+59.421,586.4)= 24.68
Pendiente: 262.251,586.4 = 0.40
ESTADISTICO:
Intercepción: 2.78262.25(110+59.421,586.4) = 0.11
Pendiente: 0.64262.251,586.4 = 1.6HIPOTESIS | PARAMETRO | ESTIMACION | ERROR ESTANDAR | ESTADISTICO | CONCLUSION |
H0: B0 = Ø | INTERCEPCION | 2.78 | 24.68 | 0.11 | SE RECAZA H0 |
H1: B0 ≠ Ø | | | | | SE ACEPTA H1 | H0: B = ҇Ø | PENDIENTE | 0.64 | 0.4 | 1.6 | SE RECHAZA H0 |
H0: B ≠ Ø | | | | | SE ACEPTA H1 |
GRAFICA DE LA CAMPANA
t= (0.025,8)= 0.7064
0.95
= 0.025
P. C.= - 0.7064...
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