Confidence Intervals for One Mean: Determining the Required Sample Size @jbstatistics

Confidence Intervals for One Mean: Determining the Required Sample Size @jbstatistics

Uploaded May 2013 | Updated September 2026, 2 hours ago

I find the sample size required to obtain a given margin of error in a confidence interval for mu. I discuss the appropriate formula and work through an example.

Confidence Intervals for One Mean: Determining the Required Sample Size

Inference for Two Means: Introduction

Simple Linear Regression: Inference on the Slope (The Formulas) (Old, fast version)

The Binomial Distribution: Mathematically Deriving the Mean and Variance

Proof that if events A and B are independent, so are Ac and B (and A and Bc)

Discrete Probability Distributions: The Poisson Distribution (STAT I – Full Lecture)

The Poisson Distribution: Introduction (fast version)

Finding Percentiles Using the Standard Normal Table (for tables that give the area to left of z)

The Sample Variance: Why Divide by n-1?

Hypothesis Tests on One Mean: A t Test Example

Basics of Probability: Unions, Intersections, and Complements

The Hypergeometric Distribution: An Introduction (fast version)

Confidence Intervals for One Mean: Determining the Required Sample Size