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how to find the sample mean with confidence interval. Confidence Interval x z o n to x z o n. This tutorial explains the following.
Statistics 101 Confidence Intervals Population Deviation Known Confidence Interval Statistics Math Statistics Notes from www.pinterest.com
An example of how to calculate this confidence interval. The interval is generally defined by its lower and upper bounds. To construct a confidence interval estimate for an unknown population mean we need data from a random sample.
The percentage reflects the confidence level.
For example the population mean m is found using the sample mean x. That does not include the true mean. This is assuming that this is a confidence interval for the true population mean. ASuppose a random sample of 35 employees gives a mean of 504 thousand dollars per employee.
