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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.
scope of operation research in insutry and defence
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
Chi square Test for the Population variance When we want to test that a random sample has been drawn from a normal population having specified variance then X2 statist
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 ot grade Y paper in
In a business, statistics is used to study the demand and market characteristics of the product or service being sold. In fact, market research
This method is more systematic and orderly than least cost method. Here penalties for each column and row of the transportation table are determined, and the row or column with
#queSix Operators are to be assigned to five jobs with the cost of assignment in Rs. given in the matrix below. Determine the optimal assignment. Which operator will have no assign
INFORMATION AND OTHER RELATED CONCEPTS - THEIR MEANING AND CHARACTERISTICS: You may often hear or read in newspapers and other popular magazines about "exponential growth of i
Inflation Inflation is a general increase in the price of goods and services. The inflation rate, as measured by the
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