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Because it would usually be prohibitively expensive and time consuming to collect information from every single member of the population and because the law of large numbers is sufficiently robust to allow most characteristics of a population to be measured with sufficient accuracy from a sample.
What else can I help you with?
What is a sample study?
sample is the population we make our study about them.
What effect does non-random sample have on what you can say about the results of a study?
It means that the results of the study cannot be claimed to hold for the entire population from which the sample was drawn. The researchers can only claim that their results hold for the individuals selected into their sample.
What is N is statistics?
The Population of the data set. If there was a study of 5000 people, 50 were randomly selected as a sample, then "N" would be 5000.
If a population consisted of 1000 people a sample of the population could consist of which number of people?
A sample from a population of 1,000 people can consist of any number from 1 to 1,000 individuals, depending on the sampling method and purpose of the study. Typically, researchers choose a sample size that is manageable and representative, often ranging from a few dozen to several hundred individuals. The key is to ensure the sample accurately reflects the characteristics of the overall population to draw valid conclusions.
Suppose a population contains 400000 people. All else being equal a study based on a population sample that includes numbers of respondents would be the most reliable?
400
What is a sample study?
sample is the population we make our study about them.
Is the subset of the population chosen by the investigator for a study?
The subset of the population chosen by the investigator for a study is known as the sample. Sampling involves selecting a smaller group of individuals from a larger population to make inferences or generalizations about the broader population. The goal is for the sample to be representative of the population so that findings from the study can be applied more broadly.
Is participants in a study of a new cholesterol drug sample or population?
population
How do sampling methods effect the rigor of a study?
A sample needs to be random and if not a simple random sample of the whole population then a stratified random sample (there are different ways to stratify). Otherwise the study is a waste of time.
Which term refers to the people from the target population are surveyed or interviewed for a study?
sample
Which terms refers to the people from the target population that are surveyed or interviewed for a study?
sample
Which term refers to the people from the target population that are surveyed interview for a study?
sample
Which unit of analysis do most sociologists study?
The unit of analysis that most sociologists study are samples. Samples portray the characteristics of the larger population from which the samples are taken.Reference:Vissing, Y. (2011). Introduction to Sociology. San Diego, CA: Bridgepoint Education, Inc.
What effect does non-random sample have on what you can say about the results of a study?
It means that the results of the study cannot be claimed to hold for the entire population from which the sample was drawn. The researchers can only claim that their results hold for the individuals selected into their sample.
Who is most likely to study a human catastrophe and why?
sociologists
What do ornithologists and sociologists have in common?
They both study things.
Difference between sample and sampling frame?
A sample is a subset of a population that is selected for research or analysis. It represents a smaller group that is studied to make inferences about the larger population. A sampling frame, on the other hand, is a list of all the elements in the population from which the sample is drawn. It serves as the source from which the sample is selected and should ideally include all members of the population.
