Question 1194545: 1.Researchers selects participants based on easy accessibility?
A.Convenience Sample B. Sample survey C. Stratified Random Sample D.Cluster Sample
2 Researchers chooses the sample from the entire population through randomization technique, such qs drawing names from a hat.
A. Voluntary Response Sample B. Convenience Sample C. Stratified Random Sample D. Simple Random Sample
3. The entire collection of items or subject that are focus of the study.
A. Population B. Sample c.Census D. Sample Size
Answer by math_tutor2020(3817)   (Show Source):
You can put this solution on YOUR website!
Answers: - Convenience Sample (choice A)
- Simple random sample (choice D)
- Population (choice A)
Explanation:
A convenience sample is something easily chosen, as the name implies. An example would be selecting the first 10 people that walk through the front door. As you can guess, this type of sampling is often heavily biased and should be avoided.
A simple random sample (SRS) is when we randomly select names from a hat, or use a random number generator to determine who makes up the sample. A random number table may be used in some cases. The table is particularly useful for homework problems where the teacher needs a standard way to ensure all the students are getting the correct consistent results. In real world applications, it's better to use computer software.
The population is the entire set of people we're concerned about. It can be the set of everyone in a certain country, or perhaps the set of people in a small town. Or it might be everyone at a certain school.
The population can also apply to objects as well. For instance, you may be studying the weights of cans at a particular bottling plant. If so, then the population would be the set of all those cans.
Be sure to carefully define your population before gathering a sample or doing any statistical analysis.
|
|
|
