Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Fstat

  • 19-04-2009 11:56am
    #1
    Butterz
    Closed Accounts Posts: 16 ✭


    Hi just looking for some help with this question.

    Details:

    Regression equation

    E(Y)=54.75 + .72X1 + 2.78X2
    Rsquared= 99.86%
    N=15

    Whats the Fstatistic?

    I got a crazy big answer so just looking for any help.

    Thanks:o


Comments

  • #2
    hivizman
    Registered Users, Registered Users 2 Posts: 1,163 ✭✭✭hivizman


    In general terms, the F statistic is the ratio of the variance in Y explained by the regression model divided by the variance in Y not explained by the model. Given that you have an Rsquared of 99.86%, the model predicts Y almost perfectly, so virtually all the variance in Y is explained by the model and there is hardly any residual variance not explained by the model. A large number divided by a very small number gives a "crazy big answer".


  • #3
    Butterz
    Closed Accounts Posts: 16 ✭Butterz


    Thanks.;)


Advertisement