stats 201 lecture 13,14
stats 201 lecture 13,14 Stat 201
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This 1 page Class Notes was uploaded by Victoria Notetaker on Sunday March 6, 2016. The Class Notes belongs to Stat 201 at Colorado State University taught by Xiaowen Hu in Spring 2016. Since its upload, it has received 15 views. For similar materials see General Statistics in Statistics at Colorado State University.
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Date Created: 03/06/16
Confidence Interval Sample statistic Usually a point estimate Used to estimate population parameter Sample point estimate +/- margin of error Lower endpoint sample point estimate upper endpoint Margin of error Margin of error Measure of variability associated with point of estimate at desired level of confidence Small margin of error means higher precision Higher desired confidence level means a larger margin of error Lowest value in the computed confidence level =lower endpoint Highest value in the computed confidence level= higher endpoint Confidence interval for p Point estimate +/- margin of error Margin of error Z score x √((sample portion)(1- Sample portion))/ (N)