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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.
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
Objectives of Measuring Dispersion a. To judge the Reliability of Measures of Central Tendency: Measure of dispersion is the only means to test the representative charac
Cost- sampling decisons σ x¯ =S/√n Where is the standard error of he mean is the standard devaluation of the population and n is t
Six 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 assignment
Demerits a.It cannot be used in the case of bi variate distribution. b.If the numbers of items are greater than say 30, the calculation becomes tedious and requ
b. 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 pape
Usefulness of Correlation 1.Correlation is very useful to economists to study the relationship between variables like price and quantity demanded. To businessmen it
main components of linear programming
current economic situation
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