**Hypothesis Testing Two Population Means Variances NOT Equal**

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**One Sample t Test**

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**2 Sample t Procedures Part 1**

This discusses the key formulas used for calculating the t procedures of a 2

**sample test where**the mean and standard deviation of the

**population**are unknown.

**Independent two sample t test for populations with equal variances**

This

**video**explains how it is possible to compare

**two population means**using a

**independent two sample**t test. Check out ...

**Two sample t test example**

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**two sample**t tests.

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**Independent t test Explained Simply**

I describe how to calculate and interpret an

**independent samples**t

**test**so that anyone

**can**understand it.

**T test for related samples**

This

**video**describes the formula for a t

**test**with related

**samples**repeated measures . It s an informal discussion of why the formula is the way it is.

**Dependent Samples t Test**

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**Pooled Variance t Tests and Confidence Intervals Introduction**

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.