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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 (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 variable X₁ should be dropped to remove collinearity.
Paul Ekman
A psychologist renowned for his research on the classification of human emotions and their expression through facial expressions.
Median
The middle value in a data set, which divides the set into two equal halves.
Mode
describes the value that appears most frequently in a data set.
Mean
A statistical measure that represents the average value of a set of numbers.
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