Select one of the two options to specify input values. Hover over the sign to obtain help.
Customize the plot by changing input values from here.
Note: You may change the default options for Power, Significance, Alternate Hypothesis and Group Sizes by clicking the 'Options' button. Click the 'Adjust' button below to adjust sample sizes for the t-distribution (option applied by default), and clustering.
This is a plot of sample sizes for a range of pooled Standard Deviations and for three values of Difference of means between groups. Customize the plot by changing input values from the 'Customize Visualisation' panel.
Download FigureCustomize the table by changing input values from here.
Note: You may change the default options for Power, Significance, Alternate Hypothesis and Group Sizes by clicking the 'Options' button. Click the 'Adjust' button below to adjust sample sizes for the t-distribution (option applied by default), and clustering.
This table shows sample sizes for a range of expected means in the two groups. Customize the table by changing input values from the 'Customize Table' pane.
Download Table