Z Tests for One Mean: The Rejection Region Approach @jbstatistics

Z Tests for One Mean: The Rejection Region Approach @jbstatistics

Uploaded January 2013 | Updated September 2026, 2 hours ago

An introduction to the rejection region approach to reaching a conclusion in a Z test. This video discusses the rejection region in the context of a Z test for one mean, but the same logic holds for other Z tests.

Z Tests for One Mean: The Rejection Region Approach

Confidence Intervals for the Ratio of Population Variances

The Poisson Distribution: Mathematically Deriving the Mean and Variance

An Introduction to the Chi-Square Distribution

Hypothesis Tests for Equality of Two Variances

Pooled or Unpooled Variance t Tests and Confidence Intervals? (To Pool or not to Pool?)

Confidence Intervals for One Mean: Sigma Known (Z Method)

Type I Errors, Type II Errors, and the Power of the Test

Deriving the Mean and Variance of the Sample Mean

The Law of Total Probability

Confidence Intervals for One Mean: Determining the Required Sample Size

Inference for Two Means: Introduction

Z Tests for One Mean: The Rejection Region Approach