In each of the following examples, identify the sampling method being used. Choose the answer in the parenthesis then explain your reason 1.A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public schools. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus. 20 schools were randomly selected and within each of those schools all fifth graders were tested. (CLUSTER, SNOWBALL, QUOTA)

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Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Question
In each of the following examples,
identify the sampling method being
used. Choose the answer in the
parenthesis
then explain
your reason
1. A sample of 2,000 was sought to
estimate the average achievement in
science of fifth graders in a city's
public schools. The average fifth
grade enrollment in the city's
elementary schools is 100 students.
Thus, 20 schools were randomly
selected and wvithin each of those
schools all fifth graders were tested.
(CLUSTER, SNOWBALL, QUOTA)*
2. A researcher has a population of
100 third grade children from a local
school district from which a sample
of 25 children is to be selected. Each
child's name is put on a list, and each
child is assigneda number from 1 to
100. Then the numbers 1 to 100 are
written on separate pieces of paper
and shuffled. Finally, the researcher
picks 25 slips of paper and the
numbers on the paper determine the
25 participants. (PURPOSIVE,
CONVENIENCE, SIMPLE RANDOM) *
3. A sociologist conducts an opinion
survey in a major city. Part of the
research plan calls for describing and
comparing the opinions of four
different ethnic groups: African
Americans, Asian Americans,
European Americans, and Native
Americans. For a total sample of 300,
the researcher selects 75
participants from each of the four
predetermined subgroups. (
JUDGMENT, STRATIFIED,
SYSTEMATIC)
4. Say you were interested in
sampling students who deal drugs on
campus. What sampling technique
could you use to build this sample?
(SNOWBALL, PURPOSIVE.
CLUSTERED)
5. Instructors teaching research
methods are interested in knowing
what study techniques their students
are utilizing. Rather than assessing all
students, the researchers randomly
select 10 students from each of the
sections to comprise their sample.
(CLUSTERED, SIMPLE RANDON,
STRATIFIED)
Transcribed Image Text:In each of the following examples, identify the sampling method being used. Choose the answer in the parenthesis then explain your reason 1. A sample of 2,000 was sought to estimate the average achievement in science of fifth graders in a city's public schools. The average fifth grade enrollment in the city's elementary schools is 100 students. Thus, 20 schools were randomly selected and wvithin each of those schools all fifth graders were tested. (CLUSTER, SNOWBALL, QUOTA)* 2. A researcher has a population of 100 third grade children from a local school district from which a sample of 25 children is to be selected. Each child's name is put on a list, and each child is assigneda number from 1 to 100. Then the numbers 1 to 100 are written on separate pieces of paper and shuffled. Finally, the researcher picks 25 slips of paper and the numbers on the paper determine the 25 participants. (PURPOSIVE, CONVENIENCE, SIMPLE RANDOM) * 3. A sociologist conducts an opinion survey in a major city. Part of the research plan calls for describing and comparing the opinions of four different ethnic groups: African Americans, Asian Americans, European Americans, and Native Americans. For a total sample of 300, the researcher selects 75 participants from each of the four predetermined subgroups. ( JUDGMENT, STRATIFIED, SYSTEMATIC) 4. Say you were interested in sampling students who deal drugs on campus. What sampling technique could you use to build this sample? (SNOWBALL, PURPOSIVE. CLUSTERED) 5. Instructors teaching research methods are interested in knowing what study techniques their students are utilizing. Rather than assessing all students, the researchers randomly select 10 students from each of the sections to comprise their sample. (CLUSTERED, SIMPLE RANDON, STRATIFIED)
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