Describe the disadvantages and advantages of using the ‘simple random sampling method’, to select a representative sample in this scenario: Statistical Analysis Assignment, UOA, NZ

Part A: Sampling methods

1. Select a sample of 50 members to survey using the simple random sampling method. This can be done by using the Research Randomiser (www.randomizer.org).

• Order these numerically and copy the numbers into your assessment.

• Copy the pop-up box labeled Results into the appendix of your assessment.

• Describe the disadvantages and advantages of using the ‘simple random sampling method’, to select a representative sample in this scenario. (4 marks)

2. Describe how you could also use systematic sampling to obtain a sample of 50 numbers from a population of 3000 observations. List the first five numbers selected in your assessment. Describe the disadvantages and advantages of this method. (4 marks)

3. Excluding simple random sampling and systematic sampling, name one other method of sampling which would be suitable to use to select your sample of 50 members. Describe how you could obtain your sample using this method. Describe the disadvantages and advantages this method has. (4 marks)

4. Name one sampling method that would be unsuitable to use here and explain why.