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In this method variables beings studied are controlled by the investigator. In other the effect of one variable is observed while other relevant variables are held constant.
This methods includes field experiment as well as laboratory experimentation. In field experiment the study is conducted b comparing experimental group with the control group. In laboratory experiment the investigator creates a situation with the exact conditions he wants to have and in which he controls some and manipulates other variables. He then observes and measures the effect of the manipulation of the independent variables on the dependent variables in a situation in which the operation of other relevant factors is held to a minimum.
meaning of critical activity ..
Customers arrive to a super market according to a Poisson process with intensity V = ½ per minute. The supermarket has two counters, that use a common queue. Counter 1 is always o
The Omega company, Brisbane, produces potato chips, corn, cheese twists, and popcorn. These products are made in Brisbane and then shipped to company warehouses and distribution ce
Ask questioA farmer intends to drill a well for his herd. In the past, only 80% of the wells drilled in this area were successful at 12 metres of depth. On finding no water at 12 m
Decision making is not only the headache of management rather all of us make decisions. We daily decide about minor issues. The essential characteristics of all decisions
SING TEST The sign test is the simplest of the parametric tests. Its name comes from the fact that it is based on the direction ( or sings for pluses or minuses ) of
Maximize w = 5x -2y +3z subject to 2x +2y -z>=2 y + 3z
maximize z=3x1+2x2 subgect to the constraints x1+x2 x1-x2 x1,x2>_0
definatins and example
Scope of operation research?
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