Author Question: Why might a researcher choose to conduct a stratified random sample over a simple random sample? ... (Read 206 times)

neverstopbelieb · **on:** Jul 24, 2018

Why might a researcher choose to conduct a stratified random sample over a simple random sample? Give two reasons.

Question 2

With a (an) __________ sample, everyone in the population must have a specified chance of making it into the sample.
Fill in the blank(s) with correct word

helenmarkerine · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

ANY TWO OF THE FOLLOWING: 1) YOU CAN FIND (AND COMPARE) INDIVIDUAL ESTIMATES FOR EACH GROUP; 2) IF THE VARIABLE MEASURED GIVES MORE CONSISTENT VALUES WITHIN EACH GROUP, THE RESULTS ARE MORE ACCURATE; 3) MAY BE CHEAPER, IF STRATA ARE GEOGRAPHICALLY SEPARATED; 4) YOU COULD USE DIFFERENT INTERVIEWERS FOR EACH OF THE STRATA.

Answer to Question 2

PROBABILITY