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... percentiles". •Calculate geometric means with "no errors", "geometric SD ... •Prism reports confidence interval for parameter "X at 50" for and provides ...

https://www.graphpad.com/guides/prism/9/user-guide/

Outliers make statistical analyses difficult. This calculator performs Grubbs' test, also called the ESD method (extreme studentized deviate), to determine ...

https://www.graphpad.com/quickcalcs/grubbs1/

... percentiles rather than entering the raw data?(802) Problems using the ... 50% of what? How exactly are IC50 and EC50 defined?(1356) Constraints in ...

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Allows for calculation of mean with custom confidence interval level · Allows for calculation of medians with "no errors", "quartiles", "min / max", "percentiles ...

https://www.graphpad.com/updates/

You know the observed survival percentage at a certain time in your study, and can be 95% confident (given a set of assumptions) that the confidence interval ...

GraphPad FAQs

When you make a column scatter graph with Prism, all symbols in each column have the same shape and color. It is possible to make some points have a ...

GraphPad FAQs

Why fit a Gaussian distribution to your data? Does your data follow a Gaussian distribution? One way to answer that question is to perform a normality test ...

https://www.graphpad.com/guides/prism/latest/statistics/

If I have data from three or more groups, is it OK to compare two groups at a time with a t test?

https://www.graphpad.com/guides/prism/latest/statistics/

A Bland-Altman plot compares two assay methods. It plots the difference between the two measurements on the Y axis, and the average of the two measurements ...

https://www.graphpad.com/guides/prism/latest/statistics/

This example explains how to create a Levy-Jennings QC graph with control lines, or grid lines, to mark the high and low control limits.

GraphPad FAQs