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Statistics Practice Test Study Guide: Probability, Normal Distribution, Confidence Intervals, and Hypothesis Testing

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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

Finding Probabilities, Z Values, and X Values with the Normal Distribution-Excel

  • Percorso guidato
    Finding Z-Scores and X Values from Probabilities-Excel
    08:09
  • Percorso guidato
    Finding Z-Scores and X Values from Probabilities-Excel Example 2
    03:05
  • Percorso guidato
    Finding Probabilities from Z-Scores and X Values-Excel Example 1
    05:07

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