We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
from PART 2 - INFERENCE
Published online by Cambridge University Press: 05 June 2012
“Well”, [Pearson] said “I do not know how old I was, but I was sitting in a high chair and I was sucking my thumb. Someone told me to stop sucking it and said that unless I did so the thumb would wither away. I put my two thumbs together and looked at them for a long time. ‘They look alike to me,’ I said to myself. ‘I can't see that the thumb I suck is any smaller than the other. I wonder if she could be lying to me.’”
Walker (1958, p. 13)Introduction
Chapter 16 shows how to test a hypothesis about a single slope parameter in a regression equation. This chapter explains how to test hypotheses about more than one of the parameters in a multiple regression model. Simultaneous multiple parameter hypothesis testing generally requires constructing a test statistic that measures the difference in fit between two versions of the same model.
An Example of a Test Involving More than One Parameter
One of the central tasks in economics is explaining savings behavior. National savings rates vary considerably across countries, and the United States has been at the low end in recent decades. Most studies of savings behavior by economists look at strictly economic determinants of savings. Differences in national savings rates, however, seem to reflect more than just differences in the economic environment. In a study of individual savings behavior, Carroll et al.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
