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.
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
what is Computerized Processing Systems
Significance points of Variance The following significant points must be kept in mind: Controllability: Controllability should also influence the decision whether t
Operating Cycle Method In this way, total operating expenses for a period are divided via the number of operating cycles in the relevant period to compute the cash need for wor
Suppose the consumer is at coffee shop 2. Coffee shop 2 provides unlimited cups of coffee for the price of $9.00 per day. - How many cups would she drink a day and how much woul
Algebraic method of the break even point The break even point can be computed by the following method: a) Units of sales volume . b) Budget total or in terms of money va
companyXYZusesthe job oder costing system.
production budget , how to do ?
Benefit of product life cycle costing The benefits of product life cycle costing are summarized as follows: 1) The product life cycle costing results in earlier actions to g
Explain Current budgets Current budgets: the period of current begets is generally of months and weeks. These budget relate to the current activities of the business. According
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd