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How to Do the Calculations for Chi-Square Problems

1. Go to http://www.stat.sc.edu/webstat/
it will take a long time (up to a couple of minutes) to load if you are on a dial up connection. The last thing to appear will be the orange "Click here to fire it up!" button.

2. Click on the orange "Click here to fire it up!" button and a gray spreadsheet will appear

 

3. Don't enter any data into the spreadsheet. Instead put your mouse on "Stat" then slide it down to "Contingency table."

 

The following dialog box will appear.

4. Type in the number of rows and the number of columns of data that you have, then press the "Okay" button.

A dialog box like the following will appear:

5. Type in your column headers and your row headers, enter your numbers, enter the name of the column variable and the name of the row variable.

6. Press the "Okay" button and your results will appear.

 

 

Region1

Region2

Region3

Region4

Region5

Total

Dem

456

24

356

2465

67

3368

Rep

342

6

267

1267

44

1926

Ind

36

1

6

255

9

307

Total

834

31

629

3987

120

5601

 

Test for independence of Part of Cal and Party:

Statistic

DF

value

Pval

Chi-square

8

74.72192

0

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