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Confidence intervals

This course contains 4 segments:

Introduction to confidence intervals

Estimating a population proportion

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This course contains 4 segments:

Introduction to confidence intervals

Estimating a population proportion

A confidence interval for a proportion estimates what percent of a population fits some category based on a results from a sample. For example, if 70 adults own a cell phone in a random sample of 100 adults, we can be fairly confident that the true percentage in the population is somewhere between 61% and 79%. Go through this tutorial to learn how to calculate confidence intervals like this.

Estimating a population mean

A confidence interval for a mean estimates a population mean based on the results from a sample. Go through this tutorial to learn how to calculate confidence intervals using sample mean and sample standard deviation.

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Time
2 hours
Via
Khan Academy
This course belongs to a collection called Statistics and probability. It's comprised of 16 courses:
  1. Probability
  2. Counting, permutations, and combinations
  3. Random variables
  4. Sampling distributions
  5. Confidence intervals (viewing)
  6. Significance tests (hypothesis testing)
  7. Two-sample inference for the difference between groups
  8. Inference for categorical data (chi-square tests)
  9. Advanced regression (inference and transforming)
  10. Analysis of variance (ANOVA)
  11. Displaying and comparing quantitative data
  12. Analyzing categorical data
  13. Summarizing quantitative data
  14. Modeling data distributions
  15. Exploring bivariate numerical data
  16. Study design
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