Custom Search
|
|
|
||
 APPENDIX F
TABLE 4 SHORT TABLE OF RANDOM NUMBERS
Using the Random Sampling Tables.
The following pages contain a series of random numbers. Assume that we wish
to randomly select a sample size of five from a population numbered
sequentially from 101 to 140.
To use the tables, begin by picking a group of numbers on any page of the
tables. This can be done by closing the eyes and pointing with a pencil to
some initial group. The initial group pointed to in this example was 03, on
the 15th line, second column of the first page of the table. The table is
reproduced in part below.
03
35
60
81
16
61 97 25 14 78 21 22 42
57 66 76
72
91
03
63
48 46 44 01 33 06 36 63
06 15 03
72
38
01
58
25 37 66 92 70 96 70 89
80 87 14
25
49
25
94
62
Note that these are three digit numbers. Reading the table in groups of
three numbers, we get a series of numbers as follows:
033
560
811
661
972
514
782
122
425 766
767
291
036
348
348
464
401
330 636
630
615
037
238
015
825
376
692 709
670
898
087
142
549
259
462
Discarding numbers other than those between 101 and 140, the first
population number identified is 122.
Continuing with this process and rearranging the numbers in order of
magnitude, the five samples are identified as 110, 122, 130, 132, and 138.
Alternatively, the random numbers may be obtained by using the RSED computer
programavailable from the EFDs.
F-5
|
 
|
|
|
||
