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What are some advantages and disadvantages of multistage sampling?
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∙ 14y ago
a disadvantige is that a rocket gets disposed of after each flight
Wiki User
∙ 14y ago
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What are Advantages and disadvantages in multistage sampling?
Advantages are: 1. Fewer investigators are needed 2. It is not so costly to obtain a sample Disadvantages are: 1. There is the possibility of bias if, for example, only if a small number of regions are selected 2.The method is not truly random as once the final sampling areas have been selected the rest of the population cannot be in the sample. If the population is heterogeneous, the areas chosen should reflect the full range of the diversity. Otherwise, choosing some areas and excluding others (even if it is done randomly) will result in a biased sample.
What is occurs when some population units are excluded from the process of selecting the sample?
sampling errorS OCCURES WHEN SOME POPULATION UNITS ARE EXCLUDED FOR SAMPLING
What is systematic sampling?
In systemic sampling, we select some starting point and then select every kth (such as the 50th) element in the population. Per Elementary Statistics by Triola, page 24
What are the Advantage and disadvantage of purposive sampling?
Purposive sampling involves selecting participants for a study based on some characteristic that you know they have. There is nothing random about their selection - it was done with intent. An advantage of this type of sampling is that it allows the researcher to quickly hone in on the target population. A disadvantage to this form of sampling is that researcher bias can creep in to influence results, if subjects are not chosen very carefully.
Discuss the utility of statistics as a managerial tool Also describe its limitations?
The limitation of any statistical application is the fact that it always depends on some sampling. If this sampling is incomplete, or not representative of your actual base (say customers), your data may not yield accurate conclusions. Additionally, since it depends on sampling, your measurement is only applicable to a base that fits the profile of your sampling. For instance, if you took your sampling from Caucasian males over age 35, and it turns out your customer base has a large number of African, American females under 23, your conclusions based on the statistics could be imperfect.
What are Advantages and disadvantages in multistage sampling?
Advantages are: 1. Fewer investigators are needed 2. It is not so costly to obtain a sample Disadvantages are: 1. There is the possibility of bias if, for example, only if a small number of regions are selected 2.The method is not truly random as once the final sampling areas have been selected the rest of the population cannot be in the sample. If the population is heterogeneous, the areas chosen should reflect the full range of the diversity. Otherwise, choosing some areas and excluding others (even if it is done randomly) will result in a biased sample.
What are the different advantages of Sampling?
Advantages of Sampling:; Sampling has some advantages over the complete count. These are: ... Sometimes there is a need for sampling. Suppose we want to inspect the eggs, the bullets, the missiles and the tires of some firm.
Advantages and disadvantages of random sampling?
Advantage -- Less effort, cost, work Disadvantage -- Less accuracy, information, difficulty of establishing true 'randomness" in some samplings.
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