Tag Archives: normal distribution

t-Test

The figure below shows the relationship between confidence intervals and the result of a t-test. (a) The shaded area under the normal distribution curve shows the confidence interval for the sample based on texp. Based on the sample, we expect … Continue reading

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Central Limit Theorem

According to the central limit theorem, when an analysis is subject to a variety of indeterminate errors, the distribution of results for that analysis will approximate a normal distribution. As the number of sources of indeterminate error increases, the results … Continue reading

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Normal Distribution

A binomial distribution describes a population whose members have only certain, discrete values. This is the case with the number of 13C atoms in cholesterol. A molecule of cholesterol, for example, can have two 13C atoms, but it can not … Continue reading

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