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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.
Manufacturer Orders
Requests or purchase orders placed by businesses to manufacturers for the production and supply of goods.
Milk Run
A routing strategy where a single transportation vehicle visits multiple locations on a predefined route to pick up or deliver goods, maximizing efficiency and reducing transportation costs.
Truckload Shipment
The transportation of goods where the quantity is sufficient to fill an entire truck, maximizing the vehicle's cargo capacity.
Less Than Truckload
A shipping method for transporting small freight loads that do not require the full space of a truck.
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