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How to Calculate Summary Statistics Using Web Stat

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. Type the data in the "var 1" column like above.

4. After all the data has been entered, put your mouse on "Stat" then slide it down to "Summary Stats."

The following menu will appear.

5. Click on "var1" in the gray portion and it will then also appear in the white portion, as shown below.

6. If you click the "Calculate" button, the following results will appear:

Results:

 

Summary Statistics:

Variable

n

Mean

Variance

Std. Dev.

Median

var1

6

26.666666

15.866667

3.9832985

25.5

.

Variable

Range

Min

Max

Q1

Q3

Var1

11

23

34

24

28

 

Note: The variance and standard deviation are based on Sum of  Squares / n - 1.

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