Table Krejcie & Morgan

Always remember for sample size, the bigger the better.

Kepada sesiapa yang di luar sana yang ingin mendapatkan saiz ujikaji yang sesuai daripada populasi yang ditetapkan.  Anda boleh rujuk rajah di bawah.  Rajah di bawah sangat sesuai untuk penyelidikan sosial (95% kepastian).  Selamat menyiapkan penyelidikan.

The size of the population and amount of error determines the size of a randomly selected sample. This table helps the researcher determine (with 95 percent certainty) what the results would have been if the entire population had been surveyed.

Table for Determining the Random Sample Size from a Determined Population:

If your population is:	Then your random sample size should be:	If your population is:	Then your random sample size should be:
10	10	440	205
15	14	460	210
20	19	480	214
25	24	500	217
30	28	550	226
35	32	600	234
40	36	650	242
45	40	700	248
50	44	750	254
55	48	800	260
60	52	850	265
65	56	900	269
70	59	950	274
75	63	1,000	278
80	66	1,100	285
85	70	1,200	291
90	73	1,300	297
95	76	1,400	302
100	80	1,500	306
110	86	1,600	310
120	92	1,700	313
130	97	1,800	317
140	103	1,900	320
150	108	2,000	322
160	113	2,200	327
170	118	2,400	331
180	123	2,600	335
190	127	2,800	338
200	132	3,000	341
210	136	3,500	346
220	140	4,000	351
230	144	4,500	354
240	148	5,000	357
250	152	6,000	361
260	155	7,000	364
270	159	8,000	367
280	162	9,000	368
290	165	10,000	370
300	169	15,000	375
320	175	20,000	377
340	181	30,000	379
360	186	40,000	380
380	191	50,000	381
400	196	75,000	382
420	201	1,000,000	384

Derived from: Krejcie, R. V., & Morgan, D. W. (1970). Determining sample size for research activities. Educational and Psychological Measurement, 30, 607-610.