Calculators
One Sample Z-Test Calculator
A one sample z-test is used to test whether or not the mean of a population is equal to some value when the population...
Calculators
F-Test for Equal Variances Calculator
An F-test is used to test whether two population variances are equal..
To perform an F-test for two samples, simply enter a list of values...
Calculators
Tolerance Interval Calculator
A tolerance interval is a range that is likely to contain a specific proportion of a population with a certain level of confidence.
This calculator...
Calculators
Area To The Right of Z-Score Calculator
This calculator finds the area to the right of a certain z-score in the normal distribution.
Simply enter the z-score below and then click the...
Calculators
Area To The Left of Z-Score Calculator
This calculator finds the area to the left of a certain z-score in the normal distribution.
Simply enter the z-score below and then click the...
Calculators
Simpson’s Diversity Index Calculator
Simpson’s Diversity Index is a way to measure the diversity of species in a community.
To calculate this index for a given community, simply enter...
Calculators
X-Bar (Sample Mean) Calculator
In statistics, x-bar (x) is a symbol used to represent the sample mean of a dataset.
To calculate x-bar for a given dataset, simply enter...
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