Stratified sampling, Basic Statistics

Assignment Help:

Stratified Sampling: If the population from which a sample is to be drawn does not constitute a homogenous group, then stratified sampling technique is applied so as to obtain a representative sample. In this techniques the population is stratified into a number of non overlapping subpopulations or strata and sample items are selected from each stratum. If the items selected from each stratum is based on simple random sampling the entire procedure first stratification and the simple random sampling is known as stratified random sampling.


Related Discussions:- Stratified sampling

Calculate the mean value and variance, 1. Generate 1000 samples for each of...

1. Generate 1000 samples for each of the following discrete random variables: (a). Binomial distribution with n=40, p=0.7, and distr. with n=50, p=0.5 (b). Geometric distribu

Define mean, Explain what central tendency and variability are. In your ans...

Explain what central tendency and variability are. In your answer define what the mean, median, mode, variance, and standard deviation are. What is the difference between the descr

Estimate the parameters of the normal distribution, The sizes of 15 Califor...

The sizes of 15 California earthquakes are given below. 6.8   6.6  7.5  6.2  6.5  7.1  8.3  5.9  6.1  6.9  7.0  6.2  5.9  6.3  7.3 (a)  Assuming normal distribution for the s

Confidence interval, Questions 1. A genetic experiment with peapods res...

Questions 1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods.  Construct a 95% confidence inter

meanings of statistics by different authors, meanings of statistics by dif...

meanings of statistics by different authors and importance of statistics in the field of Education

How can do entry, mr.sunil join as a new business partner and borrowed rs. ...

mr.sunil join as a new business partner and borrowed rs. 850000 from ansul investment co. and depoisted the money into a uti bank account on 1-4-2006.

Projectile, a ball is projected so as to attain a maximum range. Find the m...

a ball is projected so as to attain a maximum range. Find the maximum height attained if initial velocity is u

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