A Sample/Population Size Activity: Is it the sample size of the sample as a fraction of the population that matters?

Figures & data

Table

population	N = 400		N = 1000		N = 10,000
Sample n	n/N	% female	n/N	% female	n/N	% female
40	40/400 = 0.10	A	40/1000 = 0.04	D	40/10000 = 0.004	H
100	100/400 = 0.25	B	100/1000 = 0.10	E	100/10000 = 0.01	I
250			250/1000 = 0.25	F
400	400/400 = 1.00	C
1000			1000/1000 = 1.00	G	1000/10000 = 0.10	J
2500					2500/10000 = 0.25	K
10000					10000/10000 = 1.00	L

Table

population	N = 400				N = 1000				N = 10,000
sample n	40	100	400	40	100	250	1000	40	100	1000	2500	10000
n/N	.10	.25	1.00	.04	.10	.25	1.00	.004	.01	.10	.25	1.00
	A	B	C	D	E	F	G	H	I	J	K	L
>.125-.175
>.175-.225
>.225-.275
>.275-.325
>.325-.375
>.375-.425
>.425-.475
>.475-.525
>.525-.575
>.575-.625
>.625-.675

Table 1: Distribution of Responses to Question 1

	Before		After
	n	%	n	%
I do not believe this	3	10.0	22	73.3
I am skeptical	4	13.3	2	6.7
Neutral/not sure	7	23.3	3	10.0
This seems right	16	53.3	2	6.7
I believe this strongly	0	0.0	1	3.3
total	30	100.0	30	100.0

Table 2 Distribution of Responses to Question 2

	Before		After
	n	%	n	%
I do not believe this	11	36.7	1	3.3
I am skeptical	9	30.0	0	0.0
Neutral/not sure	6	20.0	0	0.0
This seems right	4	13.3	3	10.0
I believe this strongly	0	0.0	26	86.7
total	30	100.0	30	100.0