Imagine that you have three strata,the size of each is shown below.
Strata 1: 200 individuals
Strata 2: 300 individuals
Strata 3: 500 individuals
You wish to draw a final sample of 100 individuals with at least 25 individuals selected from each strata.Which sampling method would be used?
A)proportionate stratified sampling
B)disproportionate stratified sampling
C)simple random sampling
D)systematic random sampling

Question

Quizplus · Accepted Answer

Disproportionate stratified sampling allows for the researcher to intentionally oversample from smaller strata to ensure that enough individuals are selected from each strata. In this case, since the sample size is fixed at 100 and we want to ensure at least 25 individuals are selected from each strata, we would oversample from Strata 1 and Strata 2 and undersample from Strata 3.

Imagine That You Have Three Strata,the Size of Each Is