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!
Independence of observations
An important assumption for the simple linear regression model is the independence of errors. In many time series models, this assumption is violated because of the correlation of errors in successive observations. This is termed to as autocorrelation.
Autocorrelation occurs if a positive error is followed by another positive error and a negative error is followed by another negative error. If autocorrelation occurs then time should be considered as an important independent variable and therefore time varies analysis should be used.
We can use Durbin Watson ‘D’ statistics to determine whether observations are independent.D = ∑(ei – ei-1)2 ∑ei2Where:
ei is the error in time iei-I is the error in time i-IThe Durbin Watson statistics provides a measure of association between successive values of the error term. The computed statistics is compared against two tabulated values du and dl that depend on the desired confidence level of the test and the degrees of freedom of the data.
If the computed Durbin Watson “D” statistics is greater than Du, then we can conclude that there’s no positive correlation between error terms.
If dl ≤ D≤ du then the test is inconclusive and therefore we can neither accept nor reject the null hypothesis.
500 000 debentures are in a company at a coupon value of R50 each in issue. During each financial year, interest on these debentures is paid in arrears and in equal quarterly inst
What are the Advantages of contributionmargin analysis the concept of contribution is variable aid to management in making managerial decisions . a few benefits resulting from
Explain the tools of management accounting
solutions for (POS) slow printing of sales tickets and unpredictable action of cash drawers. when credit approvals delayed the checkout process or when the computer was down, thus
Transportation model Table A more compact method for representing the transportation model than the linear equations is to use what we call the transportation tableau. It is a
The F–test The significance of the regression results can be tested by using the F- statistics. The F-statistics is a ratio which compares the explained sum of squares and t
Selling product for 31.00 and Variable expenses are 26.00. In order to cover the fixed expenses 31,500 hats must be sold what is the Total fixed cost in dollars?
FOR each of the following cases, indicate why management and the auditors determined that control deficiency was a material weakness. Case1. In our assessment of the effectiveness
monetaryor non monetary which will arise as aresult of implemenntinng the project
stetment
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