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Author Question: The advantage of a stratified random sample over a random sample is that A) stratified random ... (Read 119 times)

stevenposner

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on: Aug 4, 2018
The advantage of a stratified random sample over a random sample is that
 
  A) stratified random samples require less work than random samples.
  B) stratified random samples are more likely to represent accurately a population, because stratification on key variables virtually assures accurate representation on those variables.
  C) the random sample is not a probability sample.
  D) stratified random samples provide both a probability and a nonprobability sample in one procedure.

Question 2

Stratified random sampling procedures are used when
 
  A) certain subgroups are more prevalent in some samples than others.
  B) it is important to ensure that subgroups within a population are adequately represented in the sample.
  C) the population being sampled is homogeneous.
  D) it is important to ensure that certain subgroups of a population are not included in the sample.


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aburgess

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Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


stevenposner

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Reply #2 on: Aug 4, 2018
Thank you!


aburgess

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Reply #3 on: Aug 4, 2018
Always glad to help...


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