Statistical power calculator

F Distribution

one varaince test tutorial


distribution right tailed

Power calculation

Calculate the test power basted on the sample size and draw a power analysis chart.

Use this test for one of the following tests:
Simple Linear Regression
Multiple Linear Regression

Statistic Data

digits:example digits=2: (0.001234 => 0.0012)
α:significant level (0-1), maximum chance allowed rejecting H0 while H0 is correct (Type1 Error)
plan a test that will be able to identify this effect. If one exists, the test should reject the null hypothesis that the regression model provides a better fit than Y=b0. effect size f2 - examples:
0.02 - small effect, 0.15 - medium , 0.35 - large
R2 - the coefficient of multiple determination.
n:group1 sample size.
prefictors:group2 sample size.

validation message