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Exam 2 Study Guide: Probability Distributions, Sampling, Confidence Intervals, and Hypothesis Testing

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Uniform Distribution

  • Percorso guidato
    Uniform Distribution
    06:06
  • Percorso guidato
    Uniform Distribution Example 1
    02:50

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

Sampling Distribution of the Sample Mean and Central Limit Theorem

  • Percorso guidato
    Central Limit Theorem Example 1
    02:33
  • Percorso guidato
    Central Limit Theorem
    05:14
  • Percorso guidato
    Sampling Distribution of Sample Mean
    06:53

Introduction to Confidence Intervals

  • Percorso guidato
    Critical Values: z Scores
    04:46
  • Percorso guidato
    Introduction to Confidence Intervals
    06:33

Confidence Intervals for Population Mean

  • Percorso guidato
    Finding t-Values Using a TI-84
    05:47
  • Percorso guidato
    Critical Values: t-Distribution
    05:50
  • Percorso guidato
    Finding Confidence Intervals Using TI-84
    04:30

Determining the Minimum Sample Size Required

  • Percorso guidato
    Determining the Minimum Sample Size Required
    06:51

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

Performing Hypothesis Tests: Means

  • Percorso guidato
    Standard Deviation (σ) Unknown Example 3
    05:55
  • Percorso guidato
    Standard Deviation (σ) Known Example 1
    06:38
  • Percorso guidato
    Standard Deviation (σ) Known
    06:34

Type I & Type II Errors

  • Percorso guidato
    Type I & Type II Errors Example 1
    03:21
  • Percorso guidato
    Type I & Type II Errors
    06:02

Two Means - Unknown, Equal Variance

  • Percorso guidato
    Means Unknown Equal Variances Hypothesis Test Using TI-84
    06:20
  • Percorso guidato
    Means Unknown Equal Variances Hypothesis Test Using TI-84 Example 2
    03:34
  • Percorso guidato
    Means Unknown Equal Variances Hypothesis Test Using TI-84 Example 1
    03:10

Two Means - Unknown, Unequal Variance

  • Percorso guidato
    Difference in Means: Hypothesis Tests Example 1
    07:32
  • Percorso guidato
    Difference in Means: Confidence Intervals Using TI-84 Example 4
    03:33
  • Percorso guidato
    Difference in Means: Confidence Intervals
    08:21

Two Means - Matched Pairs (Dependent Samples)

  • Percorso guidato
    Matched Pairs: Hypothesis Tests
    07:23
  • Percorso guidato
    Matched Pairs: Confidence Intervals
    07:19
  • Percorso guidato
    Introduction to Matched Pairs
    08:33