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Introduction to Statistics: Help and Review9 chapters | 137 lessons

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See what you know about confidence intervals with these study materials. Answer quiz questions on topics such as the term for uncertainty in a population sample estimate and how the confidence interval is expressed.

These key points will be considered:

- Uncertainty in a sampling method
- Limits of a confidence interval of 35 plus or minus 5
- Interpreting the confidence interval in a sample problem involving finding students' average weight

**Problem solving**- use acquired knowledge to solve confidence interval practice problems**Critical thinking**- apply relevant concepts to examine information about uncertainty in estimates and sampling methods in a different light**Information recall**- access the knowledge you've gained regarding how we express confidence interval

Learn more with the lesson named Confidence Interval: Definition, Formula & Example. As you go along, these study points will be addressed:

- Introduction to how confidence intervals work
- The formula for calculating confidence interval using things like t (z value) and the variance
- Proportion in a confidence interval and the corresponding formula
- Real-world examples of using these formulas to determine crime statistics

You are viewing lesson
Lesson
24 in chapter 1 of the course:

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Introduction to Statistics: Help and Review9 chapters | 137 lessons

- Descriptive & Inferential Statistics: Definition, Differences & Examples 5:11
- Difference between Populations & Samples in Statistics 3:24
- Defining the Difference between Parameters & Statistics 5:18
- Estimating a Parameter from Sample Data: Process & Examples 7:46
- What is Quantitative Data? - Definition & Examples 4:11
- What is Categorical Data? - Definition & Examples 5:25
- Discrete & Continuous Data: Definition & Examples 3:32
- Nominal, Ordinal, Interval & Ratio Measurements: Definition & Examples 8:29
- The Purpose of Statistical Models 10:20
- Experiments vs Observational Studies: Definition, Differences & Examples 6:21
- Random Selection & Random Allocation: Differences, Benefits & Examples 6:13
- Convenience Sampling in Statistics: Definition & Limitations 6:27
- How Randomized Experiments Are Designed 8:21
- Analyzing & Interpreting the Results of Randomized Experiments 4:46
- Confounding & Bias in Statistics: Definition & Examples 3:59
- Bias in Polls & Surveys: Definition, Common Sources & Examples 4:36
- Misleading Uses of Statistics 8:14
- Causation in Statistics: Definition & Examples 3:28
- Deductive Argument: Definition & Examples
- Dot Plot in Statistics: Definition, Method & Examples 3:57
- Observational Study in Statistics: Definition & Examples 5:55
- Skewness in Statistics: Definition, Formula & Example 6:49
- Uniform Distribution in Statistics: Definition & Examples 4:58
- Confidence Interval: Definition, Formula & Example 7:33
- Chi Square Practice Problems 6:53
- Chi Square: Definition & Analysis 4:04
- How to Calculate a Chi Square: Formula & Example 4:13
- Go to Overview of Statistics: Help and Review

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