How to calculate Chi Square test?

[sas14]

how to calculate Chi-squared 2x2 test (Fischer’s exact test, two-tailed) to get an p value using sas.

[ballardw]

Basic

Proc freq data=have;

   tables var1*var2 / chisq fisher;

run;

[sas14]

how to calculate for below data

(PERCENTAGES)
A	10	0	0
b	16	31.16556	29.49382
c	12.89	3.96325	12.35552
d	33.42764	37.29058	28.69669
e	31.25851	23.25707	24.27262
f	3.353243	4.323545	5.181347
Total	100	100	100

[Reeza]

Chi-Square is for count data, you don't appear to have count data.

[ballardw]

That is also NOT 2x2 data.

[sas14]

	2000	2001	2002
(PERCENTAGES)
A	0.104789	0	0
B	29	31	29.9
c	2.	3	12.4
d	33	37	28.7
e	31	23	24.3
f	3	4	5.2
Total	100	100	100

i need to calculate 2000 vs 2001;2001vs 2002 ...

[ballardw]

Do you have actual counts or possibly even better data with one record per observation?

You can get significantly different results comparing percentages when the percentages are the same but the group counts differ significantly.

[sas14]

this is the only  data availble ....

[Reeza]

Then you need to explain your question. You need the N's even if it's just the total and you back calculate the N based on percentages. 

If you don't have N's you can calculate the variance and you can't do any tests. 

There's a difference between tossing two coins and getting two heads versus tossing a coin 100 times and getting 100 heads.

[sas14]

	2000-2005	2006-2010
C	277	162
d	898	448

for this type of p value, you want to calculate a Chi-squared 2x2 test (Fischer’s exact test, two-tailed). So for example, for C, you would do…