Confidence interval - Wikipedia, the free encyclopedia
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In statistics, a confidence interval ( CI ) is a particular kind of interval estimate of a population parameter. Instead of estimating the parameter by a single value, an interval likely to includ...
en.wikipedia.org/wiki/Confidence_interval
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A confidence interval gives an estimated range of values which is likely to include an unknown population parameter, the estimated range being calculated from a given set of sample data. (Definition taken from Valerie J. Easton and John H. McColl's Statistics Glossary v1.1)
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www.stat.yale.edu/Courses/1997-98/101/confint.htm
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The intervals for the various samples are displayed by horizontal lines as shown below. The first two lines represent samples for which the 95% confidence interval contains the population mean of 50. The 95% confidence interval is orange and the 99% confidence interval is blue.
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www.ruf.rice.edu/~lane/stat_sim/conf_interval/index.htm...
www.ruf.rice.edu/~lane/stat_sim/conf_interval/index.html
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Use the normal distribution calculator to find the value of z to use for a confidence interval ... Compute a confidence interval on the mean when σ is known ... When you compute a confidence interval, you compute the mean of a sample in order to estimate the mean of the population. Clearly, if you already knew the population...
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onlinestatbook.com/chapter8/mean.html
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statistical glossary - confidence intervals ... Confidence Interval for a Mean ... Confidence Interval for the Difference Between Two Means...
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www.stats.gla.ac.uk/steps/glossary/confidence_intervals...
www.stats.gla.ac.uk/steps/glossary/confidence_intervals.html
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Hi all,I wondered when they said its difficult to teach in a classroom, something which you knew ,..now I know what they meant..I am going to conduct a session on confidence interval during the second ... The confidence interval is the range where you expect something to be. By saying "expect" you live open the possibility...
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www.isixsigma.com/library/content/c030430b.asp
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The new applet running below is designed to help students understand confidence intervals. Each of the 50 lines on the graph below represents a confidence interval for the mean (assuming known variance). Each interval is based on a sample of size 5 taken from a standard normal distribution (mean=0 and variance=1).
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www.stat.sc.edu/~west/javahtml/ConfidenceInterval.html
www.stat.sc.edu/~west/javahtml/ConfidenceInterval.html
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How do we get, say, the 90% confidence interval, or the 99% confidence interval? A All we need to know is how many standard deviations about the mean will include 90% or 99% of the sample means. ... Similarly, for the 99% confidence interval, we can consult the following picture...
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people.hofstra.edu/Stefan_Waner/realWorld/finitetopic1/...
people.hofstra.edu/Stefan_Waner/realWorld/finitetopic1/confint.html
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