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WorksheetsReview on Probability Sampling Methods
Total questions: 14
Worksheet time: 12mins
Which of the following is not a probability sampling method?
Convenience sampling
Simple Random sampling
Stratified sampling
Cluster Sampling
A ___ is a large group that includes everything being studied.
Sample
Sampling Frame
Population
Sampling Error
This is the difference between the mean of a parameter in the population and that of the sample.
Sample
Sampling Frame
Population
Sampling Error
A department store mails a customer satisfaction survey to people who make credit card purchases at the store. This month, 45,000 people made credit card purchases. Surveys are mailed to 1000 of these people, chosen at random, and 137 people return the survey form. Identify the population and the sample.
P: 45,000 people who made credit card purchases.
S: 137 returned surveys.
P: 1,000 people that made credit card purchases who received a survey
S: 137 returned surveys.
P: 45,000 people who made credit card purchases.
S: 1,000 people that made credit card purchases who received a survey
P: All people who that have made credit card purchases.
S: 1,000 people that made credit card purchases who received a survey
The research student interviews every 10th student who enters the canteen.
simple random
systematic sampling
stratified sampling
cluster sampling
Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.
simple random
systematic sampling
stratified sampling
cluster sampling
An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 3 blocks and survey all households on those block.
simple random
systematic sampling
stratified sampling
cluster sampling
A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.
simple random
systematic sampling
stratified sampling
cluster sampling
School admin conducted a survey on post-graduation plans. Students of senior class 2018 were listed in order by class rank. The school selected a random number between 1 and 15, obtaining a number 11. Then, they selected every 11th student for the survey.
simple random
systematic sampling
stratified sampling
cluster sampling
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. What is the stratification mechanic?
African Americans
ethnic groups
researcher
There is no stratification mechanic.
A teacher wants to know how well her students are doing on a topic. She randomly picks one class to survey. What is the stratification mechanic?
students
class
survey
There is no stratification mechanic.
A political polling group is interested in learning about the proportion of registered voters who favor a particular candidate for mayor. Which of the following sampling plans may have introduced bias?
Individuals were selected randomly to participate from a list of registered voters.
Every 50th person on a list of registered voters was contacted and asked to identify who they would vote for in the upcoming election.
A list of registered voters was first separated into two lists—one of males and one of females. Then individuals were selected at random from each of the two lists.
A survey was mailed to all registered voters and those who returned the survey make up the sample
None of the above sampling plans creates the potential for bias.
Which of the following doesn’t result in some form of bias?
Choosing star section students to survey regarding their grade point average (GPA) in order to estimate the average GPA in a school.
Polling a group of potential voters outside a Republican campaign office in order to estimate the proportion of city residents who favor a particular candidate.
Surveying people who work in the marketing department of a large corporation in order to assess employee satisfaction with management policies.
Choosing a stratified random sample of juniors and seniors at a high school in order to estimate the proportion of juniors and seniors who plan to go on to college.
Asking shoppers leaving a grocery store if they think groceries should cost less in order to estimate the proportion of city residents who think groceries cost too much.
