Calculate the sampling interval according to systematic sampling technique when your sample size is 200 and your accessible population is 40,000?

Concept:

• Sample -> A subset of population.
• Sampling -> A procedure to draw representative sample from the population.
• Systematic sampling -> A probability sampling method in which researchers select sample from the population at a regular interval determined in advance.
• Sampling interval -> Fixed periodic interval calculated by dividing the population size by the desired sample size.

Explanation:

• In the above question -> Sample size - 200 and accessible population - 40,000.
• Sampling interval (k)  = Population size (N) / Sample size (n)
• Sampling interval = 40,000 / 200 = 200
• Sampling interval (k) = 200.

Additional Information

• A systematic sampling is appropriate in situation where complete population unit is available in systematic order.
• In this sampling technique, every k element from the list is selected randomly selected starting point.
• This method involves both the random sampling and stratified sampling.