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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.
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Inability of NIH, FDA, to Identify Conflict of Interest While federal regulations require that researchers receiving NIH grants remain free of financial conflicts of interest,
Royce A. Singleton and Bruce C. Straits have said that scientific social research consists of the process of formulating and seeking answers to question about the social wor
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
the dual form of the following lpp min z=3x1+2.5x2 constraints:2x1+4x2>=40, 3x1+2x2>=50 and x1,x2>=0
Periodical Article A periodical is a publication that is published periodically like a newspaper a magazine and a journal. Usually periodicals have volume numbers and n
Maximize Z = 2x - 7y subject -2x + 3y = 3 4x + 5y >= 10 6x + 7y 4x + 8y >= 5
Rank Methods Spearman s When the variables under consideration are not capable of quantitative measurement but can be arranged in serial order( ranks) we find correla
#what is the similarity and differences between transportation and linear programing models?
#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
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