Pooled-Variance t Tests and Confidence Intervals: Introduction @jbstatistics

Uploaded June 2013 | Updated September 2026, 2 hours ago

An introduction to pooled-variance t tests and confidence intervals (in the setting of inference for two means). I don't work through an example in this video. My video working through an example can be found at: youtu.be/Q526z1mz4Sc

The shame/young offender data is simulated data with the same summary statistics as found in:

Owen, T., Fox, S. (2011). Experiences of shame and empathy in violent and non-violent young offenders. The Journal of Forensic Psychiatry & Psychology, 22(4):551-563.

Pooled-Variance t Tests and Confidence Intervals: Introduction

Calculating Power and the Probability of a Type II Error (A Two-Tailed Example)

Chi-square tests: Goodness of Fit for the Binomial Distribution

Inference for Two Proportions: An Example of a Confidence Interval and a Hypothesis Test

An Introduction to Continuous Probability Distributions

Expected Value and Variance of Discrete Random Variables

Inference for One Proportion: Determining the Required Sample Size

Confidence Intervals for One Mean: Finding the Appropriate Z Value

Finding Percentiles and Areas for the F Distribution Using R

Introduction to the Central Limit Theorem

Hypothesis Tests for One Population Variance