Systematic sampling, Applied Statistics

 

Systematic Sampling

In Systematic Sampling each element has an equal chance of being selected, but each sample does not have the same chance of being selected.

Here, the first element of the population is randomly selected to begin the sampling. But thereafter the elements are selected according to a systematic plan.

Example 

If the previous retailer uses systematic sampling she would proceed as follows:

She would randomly select one bill (or customer), say bill number 6. Thereafter she would select subsequent bills (or customers) according to a systematic plan. Say, she would select every fifth bill so that the selected bills (or customers) are bill numbers 6, 11, 16, 21 and so on.

Notice that the sample containing bill numbers 6, 7, 11, 16, ... will never be selected in that form.

The main advantage in using Systematic Sampling is that it requires less time and lower costs than Simple Random Sampling method. But by using Systematic Sampling method the problem of introducing an error into the sample is more.

 

Posted Date: 9/15/2012 2:59:17 AM | Location : United States







Related Discussions:- Systematic sampling, Assignment Help, Ask Question on Systematic sampling, Get Answer, Expert's Help, Systematic sampling Discussions

Write discussion on Systematic sampling
Your posts are moderated
Related Questions
velocity of a particle which moves along the s-axis is given by v=2-4t+5t then find position velocity,acceleration

Use the information given below to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to

Angle Count method The method for estimating the proportion of the area of a forest which is in fact covered by the bases of trees. An observer goes to each of the number of po

what the purpose we use it

We are interested in assessing the effects of temperature (low, medium, and high) and technical configuration on the amount of waste output for a manufacturing plant. Suppose that

Question 3 25 marks Your employer, Quick Hit Agency (QHA), is a debt collections agency. The company specializes in collecting small accounts. QHA does not deal in large accounts

Your organization purchases bottles of a popular commercial solvent for resale.  Each bottle is labeled as containing 32 fluid ounces of the solvent.  Your cont

Differentiate between prediction, projection and forecasting.

Mode Mode is the value of the observation which occurs with the   greatest  frequency and thus  it is the most fashionable value, Mode has been derived from French  word  La  m

Mean Absolute Deviation To avoid the problem of positive and negative deviations canceling out each other, we can use the Mean Absolute Deviation which is given by