Download
chi squared tests n.
Skip this Video
Loading SlideShow in 5 Seconds..
Chi Squared Tests PowerPoint Presentation
Download Presentation
Chi Squared Tests

Chi Squared Tests

104 Vues Download Presentation
Télécharger la présentation

Chi Squared Tests

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Chi Squared Tests Test for Independence

  2. Ex 1: Is there a relationship between anger and coronary heart disease (CHD)? Low angerModerate angerHigh angerTotal CHD 53 110 27 No CHD 3057 4621 606 Total

  3. Ex 1: Is there a relationship between anger and coronary heart disease (CHD)? Low angerModerate angerHigh angerTotal CHD 53 110 27 No CHD 3057 4621 606 Total Step 2: Find the expected counts.

  4. Ex 1: Is there a relationship between anger and coronary heart disease (CHD)? Low angerModerate angerHigh angerTotal CHD 53 69.731 110 106.076 27 14.193190 No CHD 3057 3040.269 4621 4624.924 606 618.8078284 Total 311047316338474

  5. Ex 1: Is there a relationship between anger and coronary heart disease (CHD)? Low angerModerate angerHigh angerTotal CHD 53 69.731 110 106.076 27 14.193190 No CHD 3057 3040.269 4621 4624.924 606 618.8078284 Total 311047316338474 Step 4: Find the p-value and make your conclusions.