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Estadística. Serie Schaum- 4ta edición - Murray R. Spiegel.pdf (1)

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RESPUESTAS A LOS PROBLEMAS SUPLEMENTARIOS 535

15.31 3.12.

STATISTIX

Statistix 8.0

Unweighted Least Squares Linear Regression of Price

Predictor

Variables Coefficients Std Error T P VIF

Constant 32.9483 39.2425 0.84 0.4289

Bedrooms 28.6466 9.21547 3.11 0.0171 1.1

Baths 29.2845 10.9039 2.69 0.0313 1.1

R-Squared 0.7700

Estimated Price = 32.9 + 28.6(5) + 29.3(4) = 293.1 thousand.

15.32 a) 5.883; b) 0.6882.

15.33 0.9927.

15.34 a) 0.7567; b) 0.7255; c) 0.6710.

15.37 Se usa la secuencia “Statistics ⇒ Linear models ⇒ Partial Correlations”. Se llena la siguiente ventana de diálogo

como se muestra.

Se obtienen los resultados siguientes.

Statistix 8.0

Partial Correlations with X1

Controlled for X3

X2 0.5950

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