AIDS education program,
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![As part of an AIDS education program, 120 intravenous drug users
seronegative for HIV (Human Immunodeficiency Virus) in the first
screening were given instructions on sterilizing their needles with bleach
and practicing “safe sex". One year after the program's inception, a
sample of 30 of these subjects was taken by numbering the participants
from 1 to 120 and taking all subjects whose numbers are divisible by 4
(e.g., 4, 8, 12, etc.).
(i)
What are the sampling frame in this sample design?
(ii)
What are the sampling units in this sample design?
Does each person in the population have an equal chance of being
selected in the sample?
(iii)
(iv)
What kind of sampling technique used in this study?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F122daf9f-8ca8-447d-9bab-7afba4ca0b6e%2F07cd701c-39df-4732-a3cf-f6e15443fb57%2Fwp7y03_processed.jpeg&w=3840&q=75)
Transcribed Image Text:As part of an AIDS education program, 120 intravenous drug users
seronegative for HIV (Human Immunodeficiency Virus) in the first
screening were given instructions on sterilizing their needles with bleach
and practicing “safe sex". One year after the program's inception, a
sample of 30 of these subjects was taken by numbering the participants
from 1 to 120 and taking all subjects whose numbers are divisible by 4
(e.g., 4, 8, 12, etc.).
(i)
What are the sampling frame in this sample design?
(ii)
What are the sampling units in this sample design?
Does each person in the population have an equal chance of being
selected in the sample?
(iii)
(iv)
What kind of sampling technique used in this study?
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