Download presentation

Presentation is loading. Please wait.

Published bySofia O'Connell Modified over 4 years ago

1
1 2 Test for Independence 2 Test for Independence

2
2 Data Types

3
3 Hypothesis Tests Qualitative Data

4
4 2 Test of Independence 2 Test of Independence 1.Shows If a Relationship Exists Between 2 Qualitative Variables, but does Not Show Causality 2.Assumptions Multinomial Experiment All Expected Counts 5 3.Uses Two-Way Contingency Table

5
5 2 Test of Independence Contingency Table 2 Test of Independence Contingency Table 1.Shows # Observations From 1 Sample Jointly in 2 Qualitative Variables 1.Shows # Observations From 1 Sample Jointly in 2 Qualitative Variables

6
6 2 Test of Independence Contingency Table 2 Test of Independence Contingency Table 1.Shows # Observations From 1 Sample Jointly in 2 Qualitative Variables Levels of variable 2 Levels of variable 1

7
7 2 Test of Independence Hypotheses & Statistic 2 Test of Independence Hypotheses & Statistic 1.Hypotheses H 0 : Variables Are Independent H 0 : Variables Are Independent H a : Variables Are Related (Dependent) H a : Variables Are Related (Dependent)

8
8 2 Test of Independence Hypotheses & Statistic 2 Test of Independence Hypotheses & Statistic 1.Hypotheses H 0 : Variables Are Independent H a : Variables Are Related (Dependent) 2.Test Statistic Observed count Expected count

9
9 2 Test of Independence Hypotheses & Statistic 2 Test of Independence Hypotheses & Statistic 1.Hypotheses H 0 : Variables Are Independent H a : Variables Are Related (Dependent) 2.Test Statistic Degrees of Freedom: (r - 1)(c - 1) Rows Columns Observed count Expected count

10
10 Expected Count Example

11
11 Expected Count Example 112 160 Marginal probability =

12
12 Expected Count Example 112 160 78 160 Marginal probability =

13
13 Expected Count Example 112 160 78 160 Marginal probability = Joint probability = 112 160 78 160

14
14 Expected Count Example 112 160 78 160 Marginal probability = Joint probability = 112 160 78 160 Expected count = 160· 112 160 78 160 = 54.6

15
15 Expected Count Calculation

16
16 Expected Count Calculation

17
17 Expected Count Calculation 112x82 160 48x78 160 48x82 160 112x78 160

Similar presentations

OK

Business Statistics: A Decision-Making Approach, 6e © 2005 Prentice-Hall, Inc. Chap 10-1 Business Statistics: A Decision-Making Approach 6 th Edition Chapter.

Business Statistics: A Decision-Making Approach, 6e © 2005 Prentice-Hall, Inc. Chap 10-1 Business Statistics: A Decision-Making Approach 6 th Edition Chapter.

© 2018 SlidePlayer.com Inc.

All rights reserved.

By using this website, you agree with our use of **cookies** to functioning of the site. More info in our Privacy Policy and Google Privacy & Terms.

Ads by Google

Ppt on image fusion Ppt on red blood cells Ppt on market friendly statements Burn ppt on dvd Ppt on pi in maths the ratio Ppt on ram and rom in computer Ppt on water our lifeline program Ppt on hard gelatin capsule Ppt on ms office 2010 Ppt on construction for class 10 cbse