Explore BrainMass
Share

Explore BrainMass

    Heteroskedasticity

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1) If I suspect that heteroskedasticity is present in the following model .ie., we don't believe that the variance of women's earnings would be the same as the variance in men's earnings, what am I suspecting to be true (i.e. define heteroskedasticity)? What OLS assumption is violated if this were true? What are the repercussions regarding my analysis if I do not correct for this problem?
    Earningsi = B0 + B1 × ui

    © BrainMass Inc. brainmass.com October 10, 2019, 3:09 am ad1c9bdddf
    https://brainmass.com/economics/regression/ordinary-least-squares-heteroskedasticity-408922

    Attachments

    Solution Preview

    Ordinary least squares (OLS) is a method estimating an unknown parameter of a variable in a regression model. The value it produces is called beta. It assumes that the variance of the error term is constant. Heteroskedasticity exists when the variance of the ...

    Solution Summary

    How Heteroskedasticity affects the outcome of significance tests are determined.

    $2.19