sta630 gdb complete solution spring2020

SOLUTION

Simple Random Sampling 

Simple random is consider the easiest method of probability 

Sampling 

All researcher to do to accomplish simple random sampling 

Is guarantee that all individual of the population are include in a master list 

After that ,a subject is chosen at  random from the master list 

Cluster  (area) Random 

When the size of a population is too enormous for basic random sampling ,cluster 

Sampling is used.

As it was a world a subcontinent, or a country.

A proper sample frame for a dispersed population is lacking in research.

The cost of getting at a sampled element is really high.

Stratified Random sampling 

Subject is initially grouped into different classifications such as, gender .level .education, or social status.

It’s important to note that these classifications ,should not have any overlapping subjects