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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.
Case Study - Experimental Design Dental Clinic A leading dental clinic with three well qualified dentists is seriously considering keeping in touch with its pat
in a rectangular game pay off matrix of player a is as follows B1 B2 A1 5 7 A2 4 0 salve the game write down the pay off matrix of B and then solve the ga
regression line drawn as y=c + 1075x, when x was 2, and y was 239, given that y intercept was 11. calculate the residual
Word problems based on formulation of linear programming problems. 2. A manufacturer produces nuts and bolts for industrial machinery. It takes 1 hour of work on machine 1 an
Categories of Information in Social Sciences: It would be useful, particularly in social sciences, to group information into three categories: • Statistical Information
High Costs are Involved in the Use of O. R Techniques: O. R techniques usually prove very expensive. Services of specialized persons are invariably called for ( and along w
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
Types of Correlation 1. Positive Correlation : When the values of two variables move in the same direction .e. when an increase in the values of one variables is ass
Making Decision Lastly a decision should be arrived as to whether the null hypothesis is to be accepted or rejected. In this regard the value of the test statistic
state phases of operations research and and their importance in solving problems
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