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Stat help. K2=95% confidence

by rowdy3
Tags: confidence, k295%, stat
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rowdy3
#1
Jan19-13, 06:48 PM
P: 31
To capture the actual Rent amount 95% of the time, predictions from the fitted equation should include a margin of error of about plus or minus ______ (round to the nearest ten dollars).
$128
$114 (answer)
$57
$228
Here's a pic of the table. How did they get the answer? http://picturetrail.com/sfx/album/view/24285022
I know k2= 95%. I know you do 2 * (standard error) but I don't see that on the table.
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Bacle2
#2
Jan20-13, 12:48 AM
Sci Advisor
P: 1,170
Is this an inference for regression test that you're doing?
rowdy3
#3
Jan20-13, 05:34 PM
P: 31
Yes I think so.

Bacle2
#4
Jan21-13, 12:15 AM
Sci Advisor
P: 1,170
Stat help. K2=95% confidence

Check out :

http://www.stat.berkeley.edu/~thornt...c18slides4.pdf

focus on pages 3,4, and let us know if you need more help.
Bacle2
#5
Jan24-13, 05:34 PM
Sci Advisor
P: 1,170
Please let me know if you need more help.


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