Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Regressional analysis question

  1. Aug 1, 2005 #1
    Ive been posting many questions, hopefully the alst for awhile:

    You have collected data on sales and population within a one mile radius on 12 stores of a supermarket. You determined that the adjusted coefficient of determination is 93.85%. Determine the coefficient of determination.

    I think there isnt enough info, but I guess I could be missing something
  2. jcsd
  3. Aug 1, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    I am going to assume "coefficient of determination" is the R2 coefficient. See http://www.csus.edu/indiv/j/jensena/mgmt105/adjustr2.htm [Broken]. You have to determine what your n (number of observations) and k (number of Independent Variables) are. The problem you posted does not give you these.
    Last edited by a moderator: May 2, 2017
  4. Aug 1, 2005 #3
    n = 12 (number of stores)

    k = 1---> one independent variable, one dependent (I can asume single regression)

    also, its [tex]r^2[/tex] because its a sample
  5. Aug 1, 2005 #4


    User Avatar
    Science Advisor
    Homework Helper

    You're home free then, are you not?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Regressional analysis question Date
B What question should you ask? Apr 16, 2018
A Simulation from a process given by "complicated" SDE Apr 13, 2018
A Interpreting a paper on spectral analysis Mar 14, 2018
A Robustness of time series analysis Mar 1, 2018
B Trueness and Bias Jan 21, 2018