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Statistics Exam 2 Study Guide: Probability, Normal Distributions, Sampling, Estimation, and Hypothesis Testing

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Basic Concepts of Probability

  • Percorso guidato
    Introduction to Probability
    5:37

Standard Normal Distribution

  • Percorso guidato
    Z-Scores from Probabilities
    08:50
  • Percorso guidato
    Probabilities Between Two Values
    03:50
  • Percorso guidato
    Finding Standard Normal Probabilities using z-Table
    09:47

Non-Standard Normal Distribution

  • Percorso guidato
    Finding Z-Scores for Non-Standard Normal Variables Example 1
    06:21
  • Percorso guidato
    Finding Values of Non-Standard Normal Variables from Probabilities
    04:05
  • Percorso guidato
    Finding Z-Scores for Non-Standard Normal Variables
    03:17

Sampling Distribution of Sample Proportion

  • Percorso guidato
    Sampling Distribution of Sample Proportion
    05:11
  • Percorso guidato
    Using the Normal Distribution to Approximate Binomial Probabilities Example 1
    03:21
  • Percorso guidato
    Using the Normal Distribution to Approximate Binomial Probabilities
    06:23

Confidence Intervals for Population Proportion

  • Percorso guidato
    Constructing Confidence Intervals for Proportions Example 1
    06:38
  • Percorso guidato
    Finding the Minimum Sample Size Needed for a Confidence Interval
    04:08
  • Percorso guidato
    Constructing Confidence Intervals for Proportions Example 2
    04:24

Steps in Hypothesis Testing

  • Percorso guidato
    Step 4: State Conclusion
    09:56
  • Percorso guidato
    Step 2: Calculate Test Statistic
    06:34
  • Percorso guidato
    Step 1: Write Hypotheses
    06:21