Confidence Intervals for the Mean | |
Summary |
when a sample is taken from a population, we can use sample statistics, such as and s as point estimates for the population parameters, μ and σ. a one-off sample such as this could be a very inaccurate estimator however and it is best to find a range or interval of values and say with some level of probability that the population parameters will lie within this range. this range of values is called a confidence interval. |
Key Skills
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find a confidence interval, at various degrees of confidence, for a population mean. |
Vocabulary |
confidence interval, degree of confidence, point estimate, population,mean, |