2.11 A professional society, with a membership of 45,000, is designing a study to evaluate its members’ satisfaction with the type of sessions presented at the society’s annual meeting. In each of the following descriptions of the method of selecting participants in the survey, identify the type of sampling method used (simple random sampling, stratified sampling, or cluster sampling).The society has an alphabetical listing of all its members. It assigns a number to each name and then using a computer software program generates 1,250 numbers between 1 and 45,000. It selects these 1,250 members for the survey.The society is interested in regional differences in its members’ opinions. Therefore, it divides the United States into nine regions with approximately 5,000 members per region. It then randomly selects 450 members from each region for inclusion in the survey.The society is composed of doctors, nurses, and therapists, all working in hospitals. There are a total of 450 distinct hospitals. The society decides to conduct onsite in-person interviews, so it randomly selects 20 hospitals and interviews all members working at the selected hospital.

Solution: a)Simple random sampling. We are randomly selecting 1250 members out of 45000 members,…

Answered: A professional society, with a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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2.11 A professional society, with a membership of 45,000, is designing a study to evaluate its members’ satisfaction with the type of sessions presented at the society’s annual meeting. In each of the following descriptions of the method of selecting participants in the survey, identify the type of sampling method used (simple random sampling, stratified sampling, or cluster sampling).

The society has an alphabetical listing of all its members. It assigns a number to each name and then using a computer software program generates 1,250 numbers between 1 and 45,000. It selects these 1,250 members for the survey.
The society is interested in regional differences in its members’ opinions. Therefore, it divides the United States into nine regions with approximately 5,000 members per region. It then randomly selects 450 members from each region for inclusion in the survey.
The society is composed of doctors, nurses, and therapists, all working in hospitals. There are a total of 450 distinct hospitals. The society decides to conduct onsite in-person interviews, so it randomly selects 20 hospitals and interviews all members working at the selected hospital.

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