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Estimates based on the sample should become more accurate.

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Q: What happens when you increase the sample size in an experiment?
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How does sample size affect the experiment?

The sample size determines the accuracy of results in an experiment


How does sample size affect the validity of an experiment?

The sample size has no effect on the validity of an experiment: instead, it is the experimental procedure and integrity of the experimenters.The sample size can affect conclusions that may be drawn from an experiment. The larger the sample is, the more reliable these conclusions are.


What happens to the confidence interval if you increase the sample size?

The confidence interval becomes smaller.


What is the benefit of using a large sample size in an experiment?

Statistically the larger the sample size the more significant the results of the experiment are. Chance variation is ruled out.


What happens to width of interval if you decrease the sample size?

It will decrease too. * * * * * If it is the confidence interval it will NOT decrease, but will increase.


How do you determine an adequate sample size?

A sample size is needed whenever you conduct an experiment. How you determine an adequate sample size depends on the scope of what you're testing, such as medications.


What happens to the sample size if you increase the standard deviation?

The statistics of the population aren't supposed to depend on the sample size. If they do, that just means that at least one of the samples doesn't accurately represent the population. Maybe both.


Why would having a larger sample size be a better idea than having a samll sample size when doing an experiment?

less bias and error occur when sample size is larger


How does the sample size affect an experiment?

Sample size greatly reduces any error to randomness in a given sample. Each experiment requires a proper size of a sample. The better it is fitted to the experiment, the better is the result. For example, if you are trying to find out the study habits of students at your school of 1000 kids, a sample size of 50 would be sufficient. However, if you are trying to find out the study habits of students across the US, a sample size of at least several hundred-thousand would be required, preferably several million.


Why do you use a large sample size when conducting an experiment?

Better the results


Why should the sample size of the control group be the same as the size of the experimental group?

In a scientific experiment, the control group and the experimental group are treated the same way except for the variable being tested. Because the margins of error increase as the sample size gets smaller, both groups should be the same size.


Does the accuracy of a sample in representing the characteristics of the population from which it was drawn always increase with the size of the sample?

yes the size is 4444