Question: Can you help me with both? 3. Describe the difference between cluster sampling and stratified sampling. Cluster Sampling refers to a sampling method where the

Can you help me with both?

3. Describe the difference between cluster sampling and stratified sampling. Cluster Sampling refers to a sampling method where the members of the given population are selected at random whereas stratified sampling the given population is divided into homogenous segments. 4. Describe an example of a study that would need institutional review board approval. Why is it necessary in this case

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