The proportion of the population is divided into equal ratios (8:2: 2). Therefore, the selected sample by simple random bounce label prawet selected 6 Community Center, 2 2 road, nongbon, community to community, in which each community random selection based on the proportion of the population by prawet. Selected number of samples as follows: 1. the number of fish, Tiger chumchonkrathum 889 people randomly selected 27 people, 2.72-74 Prem ruethai community number 882 people randomly selected 27 3. community sanitation, 2 (long) The number of randomly selected people, 318 11 4. number of mosques, community organizing, crocodile, 525 people randomly select 5 people in 5., developed the floating Pavilion village community number 454 people randomly selected 15 6 40 acres the amount of nut community. 1463 people randomly selected number of 45 people group dokmai examples as follows: 1. the number of people has developments Chae chumchonkrathum 307 randomly selected 60 people, 2. a cooperative community, urban communities, Lotus Ltd. The total number of 105 people randomly selected 30 Nong Bon. Select the example group as follows: 1. number of communities there are 473 SOI 6 friendships of people randomly selected 45 persons 2. Community ro come tun Islam. There are number of 339 people randomly selected 38 people.
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