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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.
Disadvantages of Mean Deviation a.Mean deviation ignores the algebraic signs of the deviations and such it is not capable of further algebraic treatment. b.It is no
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0
Simple Graph The values of the two variables are plotted on a graph paper. We get two curves one for x variables and another for y variables. These two curves reveal the dir
Solve the following Linear Programming Problem using Simplex method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0
state phases of operations research and and their importance in solving problems
Q. Explain Research Terminology? Research Terminology - Independent and Dependent variables: There are many practical problems in which the values of one variable depend upon t
Tentative explanations when formulated as propositions are called hypotheses. It is very important to state the hypothesis and its anticipated consequences before star
The scientific methods is based on certain article of path these are: 1. Reliance on Evidence: Truth is established on the basis of evidence. Conclusion is admitted onl
Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2, Subject to the constraints: X1+ X2 = 4 X1+ X2 = 2 X1, X2 = 0
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