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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.
.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
Operation Research may be regarded as a tool which is utilized to increase the effectiveness of the management decisions. O R is objective supplement to the subjective feeling
Cohen Chemicals, produces two types of photo-developing fluids. The first, a black and white picture chemical, costs Cohen $2500 per ton to produce. The second, a colour photo chem
Assumption for students Test a.The parent population from which the samples is drawn in normal. b.The sample observations are random i ,e the given sample is drawn
Higher Order Table When three or more characteristics are represented in the same table such a table is called higher order table. The need for such a table arises
A constraints in an LPP restricts? (Value of objective function,Value of decision variable,Use of available resources, uncertainty of optimum value) please help me to find out righ
Simple Random Sampling This is simplest and most popular technique of sampling. In it each unit of the population has equal chance of being included in the samp
Dynamic programming may be considered thoutgrowth of mathematical programming and involves the optimization of multistage( sequence of inter related decisions) decision process
Operations Research uses the methods of science to understand and explain the phenomena of operating systems. It devises the theories( models ) to explain these phenomena
Pamphlets - classification of documents: A pamphlet is an independent publication. It is normally a document of a few printed pages, usually less than 49. Pamphlets cover an e
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