Goodness of fit for regressions
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How do we measure variability for the marginal distribution
Use the SS
_{total}
Compute the SS
_{error}
Contrast with a 1 way ANOVA
How can we find the SS
_{error}
?
Square and sum the residuals
How can we find the SS
_{regression}
?
SS
_{total}
-SS
_{error }
This is the sum of squares of the predicted values
How would we find the R
^{2}
value for regression analysis?
SS
_{regression}
divided by SS
_{total}
What is the null hypothesis tested by regression analysis?
H0: b*(slope)=0
What is the alternate hypothesis tested by regression analysis?
HA
: b*≠0 (2 sided)
HA
: b*>0 (1 sided)
Card Set Information
Author:
camturnbull
ID:
297179
Filename:
Goodness of fit for regressions
Updated:
2015-03-01 14:18:29
Tags:
Stats
Folders:
Stats
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