Texas Instruments TI-84 Plus Guide Book

Chapter 13: Inferential Statistics and Distributions 360
c
2
GOF-Test
GOF-TestGOF-Test
GOF-Test
c
2
GOF-Test (Chi Square Goodness of Fit; item D) performs a test to confirm that sample
data is from a population that conforms to a specified distribution. For example, c
2
GOF
can confirm that the sample data came from a normal distribution.
In the example:
list 1={16,25,22,8,10}
list 2={16.2,21.6,16.2,14.4,12.6}
Drawn results:
The Chi-square
Goodness of Fit
input screen:
Note: Press
… ~ ~ to
select TESTS. Press
†
several times to select
D:X
2
GOF-Test... Press
Í. To enter data for
df (degree of freedom),
press † † †. Type 4.

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-