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From |
Kit Baum <kitbaum@mac.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: re: beta coefficients for interaction terms |

Date |
Sun, 21 Jun 2009 09:58:41 -0400 |

<> Lisa said but it is important for my paper to show the value of the intercept, and I get different values if I use either the standardized or the not standardized dependent variable. If I have the null hypothesis that is is equal to zero, do I have to use the standardized or not standardized dependent variable? And coming back to my original question: Why do I have to standardize the dependent variable?

. reg mpg shead slength sia2

------------------------------------------------------------------------------

------------------------------------------------------------------------------ . end of do-file . su mpg Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- mpg | 74 21.2973 5.785503 12 41

Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html

An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**st: AW: re: beta coefficients for interaction terms***From:*"Martin Weiss" <martin.weiss1@gmx.de>

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