ap biology - chi-square analysis

timestamps

• 0:00

  Introduction to Chi Square

• 0:34

  PowerPoint Setup

• 2:09

  Starting Chi Square Analysis

• 3:10

  Purpose of Chi Square

• 4:13

  Chi Square Equations

• 5:15

  Important Vocabulary

• 6:18

  Null Hypothesis

• 7:20

  Degrees of Freedom

• 8:24

  Critical Value Table

• 9:59

  Purpose and Analogy

• 11:31

  Remembering the Purpose

• 14:38

  First Practice: Guinea Pigs

• 16:14

  Phenotypes and Freedom

• 17:49

  Observed and Expected

• 20:26

  Calculation Steps

• 23:34

  Sum Chi Square

• 24:37

  Critical Value Comparison

• 27:45

  Second Practice: Cats

• 29:49

  Observed Values

• 31:22

  Expected Calculations

• 34:04

  Accept Null Hypothesis

• 35:06

  Third Practice: Wolves Dihybrid

• 37:43

  Phenotype Ratios

• 39:18

  Expected Values

• 41:37

  Reject Null Hypothesis

• 42:40

  Fourth Practice: Carrion Beetles

• 44:43

  F2 Generation Ratios

• 46:17

  Expected Phenotypes

• 48:59

  Accept Null and Conclusion