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What is Differences between two phase and two stage sampling?
Two-phase sampling involves conducting a preliminary survey to obtain information that helps in the selection of a more focused sample for a second phase, often used to improve efficiency in data collection. In contrast, two-stage sampling is a method where the population is divided into groups (or clusters) in the first stage, and then a sample of these groups is selected for detailed study in the second stage. Essentially, two-phase sampling focuses on refining sample selection based on preliminary data, while two-stage sampling emphasizes the hierarchical structure of sampling from clusters.
What is total enumeration in research?
there are two types of data collection: 1. complete/total sampling- all members of the population are measured 2. partial sampling- a proportion of members of the whole population is measured. total enumeration is preferred for certain types of data. it has a high level of accuracy and provides a complete statistical coverage over space and time.
Which sampling is obtained by dividing the population into groups and selecting all individuals from within a random sample of the groups?
It is called one-stage cluster sampling. If random samples are taken within the selected clusters then it is two-stage cluster sampling.
What is sampling and holding time?
sampling time is the number of samples per second taken from a continuous signal to make it discrete and holding time is the time between two samples..
What are some benefits and drawback of stratified sampling?
There are a number of benefits and drawbacks to stratified sampling. Two benefits are:You have a cross-section of the population, so this is more likely to be representative and thus easier to generalise.You are less likely to get a "freak" sample.Two drawbacks are:This is a very long and difficult form of sampling. It could be inconvenient or costly.You may not stratify the population by the relevant factors - what if their gender isn't important, but their economic bracket is?
What are the 2 types of biased sampling methods?
The two types of biased sampling methods are convenience sampling and judgmental sampling. Convenience sampling involves selecting individuals who are easiest to reach, which can lead to unrepresentative samples, while judgmental sampling relies on the researcher’s subjective judgment to choose participants, potentially introducing bias based on personal beliefs or preferences. Both methods can compromise the validity of the results by not accurately reflecting the larger population.
What are the two types of root systems are?
There are two types of root systems. taproot system and the fibrous root system.
What is sampling procedure?
Sampling has multiple meanings depending on the domain of work:Statistics - Sampling is selecting a subset of population from within the population to estimate the characteristics of the whole population.There are two different types of Sampling Procedure;1. Probability2. Non ProbabilityProbability sampling methods ensures that there is an equal possibility for each individual in a population to get selected.Non Probability method targets specific individuals.
What is sampling plan?
There are two major alternative sampling plans:
What are the two types of homeostasis?
The Negative feedback System & the Positive Feedback System are the two types of Homeostasis
What are two types of roots system?
There are two types of root systems. taproot system and the fibrous root system.
What are the two basic types of operating system?
There are two types of OS as follow:- Desktop Operating System- Network Operating System
2 types of conputer system boards?
We have two types of system boards which are; Nonintergrated system board and Intergrated system board.
What is the two types of power?
The two types of power are formal power, which is derived from an individual's position within an organization, and personal power, which is derived from an individual's characteristics, expertise, or personal qualities.
What are two types of heating systems?
passive solar-heating system, and active solar-heating system are two types of heating system.. =D By: Wilfred Castro.
What is the difference between two phase and double sampling?
Two-phase sampling involves selecting initial units from a population through one sampling technique and subsequently selecting final units from the initially drawn units using a different sampling technique. Double sampling, on the other hand, involves selecting two independent samples from the same population, where the second sample is used to check the results of the first sample and make adjustments if needed.
What are the important types of system software?
Firmware, Operating System, and Utilities.
