Statistics

A 95% confidence interval is a range of values that you can be 95% certain contains the true mean of the population. Confidence levels are expressed as a percentage (for example, a 95% confidence level). It means if you take repeated samples over and over again, and the 95% confidence interval was computed for each …

Explain Confidence Interval Read More »

A p-value is probability that the data would be at least as extreme as those observed. Is p-value a probability? Yes and no. It’s the sum of the followings: Probability of data that is rarer as those observed. Probability of data that is equal to those observed. Let’s look at an example of how to …

Explain P-value in Layman’s Terms Read More »