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Q: What is the recommended sample size for data collection?
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In basic statistics what is sample size and effective sample size?

sample size refers to the collection of data by only a selected size of te population through the process of sample surveys and sampling methods used in collecting data.


Why is it necessary to obtain the smallest possible size of the sample?

The smaller the sample, the fewer the resources required: in terms of time, cost of data collection, preparation, input and analyses.


What are pager-size data collection devices that cost roughly 300?

Skimmers are pager size data collection devices that cost about $300.


What is the size of a sample for a survey?

The population is every data point you intend to generalise the survey results to. The sample frame is those data points that you can pick from for the survey. The sample is which of these data points you actually survey, and the sample size is how many of those data points there are. For instance, if you have 700 students in a school, and you have access to 300 of them, and decide to give 30 of them a survey, the sample size is 30.


What is data and sample?

Data is commonly referred to the quantitative attributes of a variable. A data is nothing but a result of something. Through this result, the information is derived. Sometimes we refer to Raw Data which is unprocessed in nature which can mean a collection of numbers or characters that collect information and then convert from quantities to symbols. Sample, in statistics can mean a subset of a population. Population can be huge, so the sample can represent just a manageable size. Sample is first collected and then the statistics are derived from the sample. This process is known as Sampling.


What is the sample size for a population of 20000?

The sample size will depend on a number of factors other than the populatoin.These include:the resources (time, money) available for data collection, cleaning and validation, input and storage, and analysis;the implications of getting the answer wrong;the variability of the characteristic that is being measured;whether or not a simple random sample is the best sampling scheme.


Disadvantages of a large sample size confidence Interval in statistices?

A disadvantage to a large sample size can skew the numbers. It is better to have sample sizes that are appropriate based on the data.


What is the definition of sample size in math?

The sample size is the number of elements, out of a population, for which some data are measured in order to make assessments about the population.


Why it is informative to include data from a number of experiments?

It increases the effective sample size.


What about collecting data most determines whether or not it is accurate?

The accuracy of collected data is primarily determined by the methodology used to gather the data. Factors such as sample size, sampling method, data collection techniques, and researcher bias can all impact the accuracy of the data collected. Ensuring that these factors are carefully controlled and accounted for can help improve the accuracy of the collected data.


How does sample size affect your level of confidence in accepting a hypothesis?

A larger sample size generally leads to increased confidence in accepting a hypothesis, as it can provide more representative data and reduce the impact of random variability. However, the relationship between sample size and confidence levels also depends on factors like the variability within the data and the effect size of the hypothesis being tested.


What is the best dress size for a prototype outfit?

If you are going to make a dress as a prototype the recommended sample size in the US is a size 4. In Europe it's 36.