3. A Confidence Interval for the Difference between Two Population Proportions

Contents

• ►Section 1: Datagraphs
  • 1. Statistics in General
  • 2. Visualizing Qualitative Data
  • 3. Visualizing Quantitative Data
• ►Section 2: Datanumerics
  • 1. Datanumerics Intro
  • 2. Measures of Center
  • 3. Measures of Spread
  • 4. Sample Standard Deviation
• ►Section 3: Normal Distribution
  • 1. Normal Distribution Intro
  • 2. Uniform Distribution
  • 3. The Normal Distribution
  • 4. The z-score
  • 5. Percentiles
  • 6. Binomial Distribution
• ►Section 4: Correlation and Regression
  • 1. Correlation and Regression Intro
  • 2. A Scatterplot
  • 3. Correlation versus Causation
• ►Section 5: Data Collection
  • 1. Data Collection Intro
  • 2. Collecting Data
  • 3. Collecting Data Through Experiments
• ►Section 6: Probability and Two-Way Tables
  • 1. Probability and Two-Way Tables Intro
  • 2. Creating a Probability Model
  • 3. Combining Probabilities
  • 4. Probability of Independent Events
  • 5. Conditional Probability
• ►Section 7: Sampling Distribution
  • 1. Sampling Distribution Intro
  • 2. Sampling Distribution of the Sample Mean
  • 3. The Central Limit Theorem (CLT)
  • 4. Distribution of a Sample Proportion
• ►Section 8: A Confidence Interval for a Population Proportion
  • 1. A Confidence Interval for a Population Proportion Intro
  • 2. Part 1: The Interval of Numbers
  • 3. Part 2: The Level of Confidence C
  • 4. Summary of Methods
• ►Section 9: Introduction to Hypothesis Testing
  • 1. Hypothesis Testing Intro
  • 2. Four Parts of a Hypothesis
  • 3. Type I and Type II Errors
• ►Section 10: Hypothesis Test – One Population
  • 1. Hypothesis Test – One Population Intro
  • 2. A Hypothesis Test for a Population Proportion
  • 3. Using Confidence Intervals to Test Hypotheses
  • 4. Testing Claims About the Population Mean
• ▼Section 11: Comparing Two Populations
  • 1. Comparing Two Populations Intro
  • 2. Inference Methods for Two Population Proportions
  • 3. A Confidence Interval for the Difference between Two Population Proportions
  • 4. A Hypothesis Test Regarding Two Population Proportions
  • 5. Independent and Dependent Sampling
  • 6. Inference Methods for Dependent Samples
  • 7. A Confidence Interval for Population Mean Difference of Matched-Pairs Data
  • 8. Hypothesis Testing for Matched-Pairs Data
  • 9. Inference Methods for Independent Samples
  • 10. A Confidence Interval for the Difference of Two Independent Means
  • 11. Hypothesis Testing for the Difference of Two Independent Means
• ►Section 12: Chi-Squared Test
  • 1. Chi-Squared Test Intro
  • 2. Two-Way Tables
  • 3. The chi-Squared Test