Based on the linear program technique, and the available option, the statement that is not a decision variable when formulating the project crashing problem as a linear program is the early start times of all activities.
The term linear programming is used to describe the mathematical modeling technique in which a linear function is maximized or minimized when subjected to various constraints.
Generally, the linear program technique has been useful for guiding quantitative decisions in business planning, industrial engineering, and—to a lesser extent—the social and physical sciences.
There are a lot of factors to consider when using linear programming for project-crashing programs. Some of the factors are the following:
Generally, the early start time of all activities doesn't affect decision-making in formulating the project crashing problem because this is the starting point, and it won t affect the project completion duration.
Hence, in this case, it is concluded that the correct answer is option A. "the early start times of all activities."
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