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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 ( )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:
-True or False: Referring to Table 15-6,the variable X6 should be dropped to remove collinearity.
Psoriasis
A common skin condition characterized by reddish-silver, scaly lesions most often found on the elbows, knees, scalp, and trunk.
Dorsiflexion
The movement that brings the top of the foot toward the shin, decreasing the angle between the foot and the leg.
Plantar Flexion
The movement of the foot that points the toes downward, away from the leg.
Eversion
The process of turning inside out or being turned inside out.
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