Tech Notes

My notes on Statistics, Big Data, Cloud Computing, Cyber Security

Tag Archives: z-value

Confidence Interval and Level

Confidence Interval

The purpose of taking a random sample from a lot or population and computing a statistic, such as the mean from the data, is to approximate the mean of the population. How well the sample statistic estimates the underlying population value is always an issue. A confidence interval addresses this issue because it provides a range of values which is likely to contain the population parameter of interest. Read more of this post