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Many programs, including Prism 5, as well as InStat and our QuickCalc all round the df down to next lower integer. For this reason, the P value reported by ...

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

Descriptive statistics, detect outlier, t test, CI of mean / difference / ratio / SD, multiple comparisons tests, linear regression.

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

This calculator computes EC 80 or EC 90 (etc.) from EC 50. How? 1. Enter EC 50 I will enter: EC 50 as concentration. For 1nM, enter '1e-9'.

https://www.graphpad.com/quickcalcs/ecanything1/

Knowing the value of chi-square and the number of degrees of freedom, you can compute a P value using this GraphPad QuickCalc web calculator, an Excel formula, ...

GraphPad FAQs

Prism (up to version 5) does not compute critical values for the Dunnett or Tukey tests, but rather uses values tabulated by others.

GraphPad FAQs

This calculator will compute the proportion that had the first outcome (numerator/denominator) and the 95% confidence interval of that proportion.

https://www.graphpad.com/quickcalcs/confinterval1/

While Prism cannot do logistic regression, it can use nonlinear regression to fit log(dose) vs. response curves.

GraphPad FAQs

This example (adapted from pages 230-232 of Intuitive Biostatistics) helps you use the chi-square calculator that is part of GraphPad QuickCalcs.

GraphPad FAQs

Statistical Ratio Calculator. Use this calculator to compute a Z, t, F, or chi-square value from a probability.

https://www.graphpad.com/quickcalcs/statratio1/

Generate random integers. Create a table of random numbers with 1 2 3 4 5 6 7 8 9 10 columns and rows. Randomly select each value within this range.

https://www.graphpad.com/quickcalcs/randomn1/