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Ch. 25 Categorical Explanatory Variables in Regression: Two-Sample Comparisons, ANCOVA, and Multiple Groups

Study Guide - Learn with Videos

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Two Means - Unknown, Unequal Variance

  • Guided course
    Difference in Means: Confidence Intervals
    08:21
  • Guided course
    Difference in Means: Confidence Intervals Using TI-84
    05:22
  • Guided course
    Difference in Means: Hypothesis Tests Example 1
    07:32

Two Means - Unknown Variances Hypothesis Test - Excel

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    Two Means - Unknown Variances Hypthesis Test - Excel
    04:43
  • Guided course
    Two Means - Unknown Variances Hypthesis Test - Excel Example 2
    03:50
  • Guided course
    Two Means - Unknown Variances Hypthesis Test - Excel Example 1
    04:08

Two Means - Matched Pairs (Dependent Samples)

  • Guided course
    Introduction to Matched Pairs
    08:33
  • Guided course
    Matched Pairs: Hypothesis Tests Example 2
    05:03
  • Guided course
    Matched Pairs: Hypothesis Tests
    07:23

Multiple Comparisons: Tukey Test

  • Guided course
    Tukey Test
    08:22
  • Guided course
    Tukey Test Example 1
    05:55

Multiple Comparisons: Tukey-Kramer Test

  • Guided course
    Tukey-Kramer Test Example 1
    06:42
  • Guided course
    Tukey-Kramer Test
    09:08

Multiple Comparisons: Bonferoni Test

  • Guided course
    The Bonferroni Test
    09:54
  • Guided course
    The Bonferroni Test Example 1
    08:11

Scatterplots & Intro to Correlation

  • Guided course
    Scatterplots & Intro to Correlation
    06:36
  • Guided course
    Creating Scatterplots - Graphing Calculator
    05:26
  • Guided course
    Scatterplots & Intro to Correlation Example 1
    05:14

Linear Regression & Least Squares Method

  • Guided course
    Intro to Least Squares Regression
    07:01
  • Guided course
    Using Regression Lines to Predict Values
    04:57
  • Guided course
    Intro to Least Squares Regression Example 1
    05:02

Inferences for Slope

  • Guided course
    Hypothesis Test for the Slope of a Regression Line Example 2
    02:59
  • Guided course
    Confidence Interval for the Slope of a Regression Line
    03:12
  • Guided course
    Hypothesis Test for the Slope of a Regression Line Example 3
    04:13