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identify which of these types of sampling is | Ch 1.4 - 14BSC

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 14BSC Chapter 1.4

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 14BSC

Problem 14BSC

 

identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.

Acupuncture Study In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).

Step-by-Step Solution:
Step 1 of 3

Problem 14BSC

Answer:

Step1 of 3:

We have In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).

Step2 of 2:

We need to identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.

Step3 of 3:

Let us understand what are the types of sampling

Consider,

1).simple random sample: A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.

2).Systematic sample:Systematic random sampling is the random sampling method that requires selecting samples based on a system of intervals in a numbered population.

3).Convenience: A convenience sample is one of the main types of non-probability sampling methods. A convenience sample is made up of people who are easy to reach.

4).Stratified: Stratified is a probability sampling technique wherein the researcher divides the entire population into different subgroups or strata, then randomly selects the final subjects proportionally from the different strata.

5).Cluster: Cluster sampling refers to a type of sampling method . With cluster sampling, the researcher divides the population into separate groups, called clusters. Then, a simple random sample of clusters is selected from the population. The researcher conducts his analysis on data from the sampled clusters.

This is a “stratified sample” because, the acupuncture subjects were split into different groups based on the different types of acupuncture (strata). Then the subjects in the separate strata were compared to see the effects each type of acupuncture had on chronic lower back pain.

Step 2 of 3

Chapter 1.4, Problem 14BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

Since the solution to 14BSC from 1.4 chapter was answered, more than 613 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 14BSC from chapter: 1.4 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. The answer to “identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.Acupuncture Study In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).” is broken down into a number of easy to follow steps, and 76 words. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. This full solution covers the following key subjects: acupuncture, usual, study, back, simulated. This expansive textbook survival guide covers 121 chapters, and 3629 solutions.

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identify which of these types of sampling is | Ch 1.4 - 14BSC