In each of the following examples, identify the sampling method being used and explain why. 1. 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. 2. 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 enrolment 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 tes
In each of the following examples, identify the sampling method being used and explain why.
1. 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.
2. 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 enrolment 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 tes
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
