TABLE 15-6 Given Below Are Results from the Regression Analysis on 40

question 11

True/False

TABLE 15-6
Given below are results from the regression analysis on 40 observations where the dependent variable is the number of weeks a worker is unemployed due to a layoff (Y) and the independent variables are the age of the worker (X₁), the number of years of education received (X₂), the number of years at the previous job (X₃), a dummy variable for marital status (X₄: 1 = married, 0 = otherwise), a dummy variable for head of household (X₅: 1 = yes, 0 = no) and a dummy variable for management position (X₆: 1 = yes, 0 = no).
The coefficient of multiple determination (R) for the regression model using each of the 6 variables Xⱼ as the dependent variable and all other X variables as independent variables are, respectively, 0.2628, 0.1240, 0.2404, 0.3510, 0.3342 and 0.0993.
The partial results from best-subset regression are given below:

-Referring to Table 15-6, the model that includes all six independent variables should be selected using the adjusted r² statistic.

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Definitions:

Plasma

The liquid component of blood, in which the blood cells are suspended, consisting mainly of water and proteins.

Na+

Sodium ions, essential electrolytes in the body that help maintain blood pressure and volume, and are critical for proper muscle and nerve function.

Excretion Route

Pathways through which waste products are eliminated from the body, including the renal, respiratory, digestive, and integumentary systems.

Kidney

One of the two organs that excrete urine. The kidneys are bean-shaped organs approximately 11 cm long, 5 cm wide, and 3 cm thick lying on each side of the spinal column, posterior to the peritoneum, approximately opposite the twelfth thoracic and first three lumbar vertebrae.