Systematic random sampling, Applied Statistics

Assignment Help:

Systematic Random Sampling

This method  is generally used in such cases where a complete list of the population is available from which sample has to be selected.

Under this method the kth item  is picked up from the sample frame and k is the sampling interval which is equal to number in:

K = Size or Number in Universe (N) /Proposed Size for a sample

Thus if 200 item are to be selected from a universe of 2,000  items the k will be 10.Now if the   starting number is say 3 the kth numbers will be 13th , 23rd ,43rd,53rd ,etc. As such it is necessary to select the starting point  carefully either by drawing a card from a well shuffled   pack of cards or by throwing a dice or by taking out a numbers chit from a lot of 1 to 10 numbers etc.

The method although called a systematic random sampling is not necessarily a very scientific   method .it is suitable when there is not much dispersion in the l universe. For example if in a housing colony very 10th house is a corner plot which is larger then. The first and if every 10th house is taken starting with 1, it will give a biased selection. Similarly, kth telephone   number may have some speciality. Therefore, care should be taken to see that the systematic does not introduce any personal prejudice keeping in view the purpose of the inquiry. 


Related Discussions:- Systematic random sampling

Stratified random sampling, Stratified Random Sampling: This method of ...

Stratified Random Sampling: This method of sampling is used when the population is comprised of natural subdivision of units, The method consist in classifying the population u

Determine the maximum process variability, You are going to purchase a part...

You are going to purchase a part from a specialty vendor.  Your company needs a C p of at least 1.67 on a critical dimension of the part.  The dimensional specification for this p

Production took place, Scenario: To fundraise for middle school camp the ye...

Scenario: To fundraise for middle school camp the year 3 and 4 syndicate designed and produced chocolate treats to sell to the year 1 and 2, and year 5 and 6 students at morning te

Calculate the maximum charge current, For the circuit shown below; Wr...

For the circuit shown below; Write a KCL equation for Node A, Node B, Node C and Node D. Write a KVL equation for Loop 1, Loop 2 and Loop 3.   A simple circ

Gcnnv, Ask questiovdgngddndgdngngngngn #Minimum 100 words accepted#

Ask questiovdgngddndgdngngngngn #Minimum 100 words accepted#

Displacement of a simply supported beam, The displacement of a simply suppo...

The displacement of a simply supported beam subject to a uniform load is given by the solution of the following differential equation (for small displacements); and q is th

Z-score of a student, A study was designed to investigate the effects of tw...

A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathemati

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd