01:960:285 Lecture Notes - Lecture 29: Null Hypothesis, Statistical Hypothesis Testing, Dependent And Independent Variables

33 views2 pages
azurewolf695 and 38026 others unlocked
01:960:285 Full Course Notes
60
01:960:285 Full Course Notes
Verified Note
60 documents

Document Summary

The idea behind regression is that when there is significant linear correlation, you can use a line to estimate the value of the dependent variable for certain values of the independent variable. That is, when you reject the null hypothesis that rho=0 in a correlation hypothesis test. The value of the independent variable being used in the estimation is close to the original values. That is, you should not use a regression equation obtained using x"s between 10 and 20 to estimate y when x is 200. The regression equation should not be used with different populations. That is, if x is the height of a male, and y is the weight of a male, then you shouldn"t use the regression equation to estimate the weight of a female. The regression equation shouldn"t be used to forecast values not from that time frame. If data is from the 1960"s, it probably isn"t valid in the 1990"s.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers
Class+
$30 USD/m
Billed monthly
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
7 Verified Answers

Related Documents

Related Questions