A two-sample z-interval is a statistical method used to compare the means of two independent samples. It provides an estimate of the difference between the population means, along with a confidence interval for that difference.
Related terms
Independent Samples: Independent samples are two sets of data that are unrelated or not dependent on each other.
Hypothesis Testing: Hypothesis testing involves making an educated guess about a population parameter and using sample data to test whether it supports or contradicts the hypothesis.
Confidence Interval: A confidence interval is an estimated range of values within which we can be reasonably confident that the true population parameter lies.