Welcome to the sample size calculations page.
You have reached the Comparison of Two Proportions page
Aerial View of the University of Surrey Campus.

Please fill in all of the details below :
q1.Type of test2 sided 1 sided
q2.Size of test5% 1%
q3.Proportion of the First Population
q4.Proportion of the Second Population

<--- CLICK HERE FOR SAMPLE SIZE REQUIREMENTS