Biostats Calculator

Features > One-way ANOVA

A one-way Analysis of Variance (ANOVA) is used to determine whether differences between the means of several samples are likely to reflect differences in the underlying populations. Unlike the unpaired t-test, ANOVA can be applied to any number of groups.

After selecting One-way ANOVA from the menu, simply enter the mean, standard deviation, and the size of the samples. Biostats Calculator will measure the variance between groups, and perform a hypothesis test to determine whether it is statistically significant.

Biostats Calculator reports:

• the p value, indicating how likely it is that the observed difference would occur due to chance alone
• whether the result is significant at the 95% confidence level
• the F statistic and degrees of freedom, which together describe the magnitude of variation between the groups.

Biostats Calculator can perform this test and 11 others from the convenience of your iPhone or iPod Touch. Buy it today!

Related tests

• Unpaired t-test - measures the magnitude and significance of a difference between two groups
• Mann-Whitney U test - a non-parametric test for differences between two groups