4040 I

 

3200 I 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

Names the list VOL.

e

VOL I 

 

e

Displays the MAVG

(use ]and [

 

equation. Make sure

if necessary)

 

name is VOL.

 

 

 

 

 

 

Displays menu.

 

 

 

 

3

 

 

 

 

Stores number of

 

 



 

 

 

 

 

 

 

 

 

 

points.

3

 

 

 

 

Calculates average for

 

 

 

 

 

 

 

 

 

 

 



months 1, 2, and 3.

 

 



 

 

 

4

 

 

 

Calculates average for

 

 

 

 

 

 

 

 

 

 

 



months 2, 3, and 4.

 

 



 

 

 

5

 

 

 

Calculates average for

 

 

 

 

 

 

 

 

 

 

 



months 3, 4, and 5.

 

 



 

 

 

6

 

 

 

Calculates average for

 

 

 

 

 

 

 

 

 

 

 



months 4, 5, and 6.

 

 



 

 

 

Chi-Squared ( χ2 ) Statistics

The χ2 statistic is a measure of the goodness of fit between data and an assumed distribution.* It is used to test whether a set of observed frequencies differs from a set of expected frequencies sufficiently to reject the hypothesis under which the expected frequencies were obtained.

*The statistic can be assumed to be χ2 distributed with n–1 degrees of freedom if n or some of the Ei values are large.

14:Additional Examples 219

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