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L12 P-values, Independent Samples Tests, and A/B Testing in Statistics

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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

Critical Values and Rejection Regions

  • Percorso guidato
    Critical Values and Rejection Regions
    06:25
  • Percorso guidato
    Performing Hypothesis Test with Critical Values Example 1
    03:32
  • Percorso guidato
    Performing Hypothesis Test with Critical Values
    05:37

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

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

Two Means - Known Variance

  • Percorso guidato
    Means Known Variances Hypothesis Test Using TI-84 Example 2
    02:44
  • Percorso guidato
    Means Known Variances Hypothesis Test Using TI-84
    05:05
  • Percorso guidato
    Means Known Variances Hypothesis Test Using TI-84 Example 1
    02:51