Sample size calculator

	A	B	C	E	F
1	This is a sample size calculator template. In order to use it, click File > Make a copy. Please do not send requests to edit the file. Permissions to edit are only available for Survicate employees to ensure the template remains intact.
2
3		Determine your survey sample size
4	The number of standard deviations a given group away from the mean, or	z score	1.96		3.8416
5	Standard deviation, or	p	0.5		-0.25
6	Margin of error, or	e	0.05		0.0025
7	Population size, or	n	10000		-384.16
8				z^2	3.8416
9		Your sample size is:	369.95	p(1-p)	0.25
10				e^2	0.0025
11		Cheat-sheet for your z score		e^2 x n	25
12		Desired confidence	z score	botttom bracket	1.038416
13		99%	2.58	results	-369.9480748
14		95%	1.96
15		90%	1.65
16		85%	1.44
17
18		Other definitions
19		p	Your standard deviation is how extreme you can expect the responses to be. Choose a number between 0 and 1.
20		e	Your margin of error is how sure you need to be that the results are accurate for the entire population.
21		n	The population is all the people whose attitudes or stances you are trying to learn about.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100