Statistics Fundamentals - Part 3 expands upon the statistics vocabulary, demonstrates how to compare two populations, introduces chi-square and ANOVA, and then explores regression analysis.
- [Instructor] First, there was Statistics Fundamentals…Part one: means and medians, standard deviations,…probability, normal distributions.…Then, you jumped into Statistics Fundamentals Part two.…That's where you discovered sampling, confidence intervals,…and hypothesis testing.…Believe it or not,…every bit of what's been covered is important,…and I can tell you, there's a high probability…that you'll be using every one of these concepts…as we tackle Statistics Fundamentals Part Three.…
So if you're ready, we can get started.…We'll be looking at five primary issues in statistics:…small sample sizes, comparisons of two populations,…chi-square, ANOVA, and regression.…In Statistics Fundamentals part two,…we introduced the concepts…of confidence intervals and hypothesis tests.…We'll continue that discussion, but this time we'll consider…how we adjust for small sample sizes.…
In the process, we'll discover…t-statistics and degrees of freedom.…A new pharmaceutical drug has been developed.…To test it, a group of volunteers is split,…
- Working with small sample sizes
- Using t-statistic vs. z-statistic
- Calculating confidence intervals with t-scores
- Comparing two populations (proportions)
- Comparing two population means
- Chi-square testing
- ANOVA testing
- Regression testing
Skill Level Advanced
1. The Statistics Series: A Look Back and Forward
2. Small Sample Sizes
T-statistic vs. z-statistic3m 44s
3. Comparing Two Populations (Proportions)
4. Comparing Two Populations (Means)
6. ANOVA: Analysis of Variance
7. Introduction to Regression
Next steps1m 40s
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