Results 1 to 2 of 2

Thread: Statistics Problem: Correlation and Regression.

  1. #1
    Senior Member
    Joined
    Jul 2015
    From
    United States
    Posts
    368
    Thanks
    6

    Statistics Problem: Correlation and Regression.

    imgur.com/KK2GH1T #20


    I got r as .97, n=8, and c=.811 using a .005 tail, this means positive correlation. Is this correct?


    imgur.com/F5OhMMr #20


    I got Tophat y= -2007+7177x

    then tophat y(1.5)= -2007+7177(1.5)

    = price of 8,8785.5 Dollars, not close to the actual price of 16,097 dollars. Why cannot we predict the price of a 1.50 carat diamond?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Sep 2012
    From
    Australia
    Posts
    6,520
    Thanks
    1698

    Re: Statistics Problem: Correlation and Regression.

    Hey math951.

    Can you please fix up the links and show us the images?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Correlation and regression
    Posted in the Statistics Forum
    Replies: 3
    Last Post: Nov 26th 2015, 09:24 PM
  2. Regression and correlation coefficient
    Posted in the New Users Forum
    Replies: 1
    Last Post: Jun 21st 2012, 07:37 AM
  3. Correlation in Least Angle Regression
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: Sep 14th 2011, 12:55 PM
  4. Correlation & linear regression
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: Mar 7th 2011, 06:56 AM
  5. Regression Line and Correlation
    Posted in the Algebra Forum
    Replies: 1
    Last Post: Dec 14th 2010, 05:48 PM

/mathhelpforum @mathhelpforum