Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Construction of an explanatory model?
Construction of a sample: To apply multiple regression a large sample is generally essential (ideally between 2,000 to 15,000 individuals).
Note that for time series data, much less is required.
Data collection: Reliable data should be collected, either from a monitoring system or from a questionnaire survey or from a combination of both.
Calculation of coefficients: Coefficients can be calculated comparatively easily, by using statistical software which is both accessible and affordable to PC users.
Test of the model: The model aims to explain as much of the variability of observed changes as possible. To check how useful a linear regression equation is, tests can be performed on the square of correlation coefficient r. This tells us what percentage of variability in the y variable can be explained by the x variable. A correlation coefficient of 0.9 would demonstrate that 81% of the variability in Y is captured by variables X1-k used in the equation. The part which remains unexplained represents the residue (ε). So the smaller the residue better is the quality of model and its adjustment. Analysis of residues is a very significant step: it's at this stage that one sees the degree to that the model has been adapted to phenomena one wants to explain. It is residue analysis which also enables one to tell whether the tool has made it possible to estimate effects in a reasonable way or not. If significant anomalies are detected, regression model must not be used to estimate effects and original causal model must be re-examined, to see if further predictive variables can be introduced.
Q. Implications for the shape of cost function? A cost function is also a mathematical relationship, one which relates the expenses an organisation incurs on the quantity of ou
explain the law of demand. briefly discuss the exception to the law of demand
Determine the uses of Managerial economics Managerial economics studies the application of the principles, methods and techniques of economics to managerial problems of busine
FACTORS AFFECTING THE ABILITY OF TRADE UNIONS TO GAIN LARGER WAGE INCREASES FOR ITS MEMBERS The basic factor is elasticity of demand for the type of labour concerned. The ela
what is profit planning?
Question 1: (a) Describe the argument that market entry erodes profits in the long run. (b) Give some reasons and discuss possible strategies used for profits to persist eve
sample assignment
To eliminate competition and thereby secure higher prices, firms producing a specific product can come together and make monopoly agreements. These are called as industrial combina
Given the following payoff matrix (a) indicate the best strategy for each firm (b) why is the entry deterrent threat by firm Ato lower the pruce not credible
Utility Analysis or Cardinal Approach: The Cardinal Approach to the theory of consumer behavior is based upon the concept of utility. It assumes that utility is capable of meas
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd