Stats Week 5 Notes
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This 1 page Class Notes was uploaded by AlliSlaten on Sunday October 2, 2016. The Class Notes belongs to STAT 201 at Colorado State University taught by Kirk Ketelsen in Fall 2016. Since its upload, it has received 13 views.
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Date Created: 10/02/16
- Conﬁdence interval- an estimate of a mean gives a range of the most plausible values of the true mean • Does not guarantee that the true mean is within the range • Bigger interval = higher conﬁdence level - Formula - Ex. • mean= 33.7 • s= 10.2 • C= 99% df= n-1=12-1=11 • 33.7 (plus or minus) (0.99,11) times (10.2/ square root of 12) —> 33.7 (plus or minus) 3.106 times (10.2/ square root of 12) —> (24. 555, 42. 845) - there is a 99% chance that the true lies between 24.555 and 42. 845 - ME = t (S/ square root of n)
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