1.

To study the usages of fertilizer, randomly select 10 farmers without replacement from 30 small farm owners and 20 large farm owners. There should be 6 small farm owners and 4 large farm owners in the randomly selected 10 farmers.Random numbers for small farm owners:2, 95, 18, 96, 20, 84, 56, 11, 52, 03, 10, 45.Random numbers for large farm owners:4, 40, 34, 11, 72, 11, 50, 55, 08, 13, 76, 18.

Answer»

Small farm owners : N = 30, n = 6

  • Ignoring random numbers greater than 30 and the repeated numbers, the selected random numbers are :
    12, 18, 20, 11, 03, 10
  • Hence, the numbers of sample units of the sample of 6 small farm owners are: 12, 18, 20, 11, 03, 10

Large farm owner : N = 20, n = 4

  • Ignoring random numbers greater than 20 and the repeated numbers, the selected random numbers are: 04, 11, 08, 13, 18
  • Hence, the number of sample units of the sample of 4 large farm owners are : 04, 11, 08, 13, 18.

Thus, randomly selected 10 farmers are:

Small farm owner: 12, 18, 20, 11, 03, 10
Large farm owner: 04, 11, 08, 13


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