Indroduction

N Solution 2007 is the leading software for sample size calculation and power analysis. N Solution 2007 software provides easy-to-use interface for determination of the appropriate sample size, which is a crucial part of study design. N Solution 2007 helps you to find the required sample size. N Solution 2007 covers over 130 statistical tests and procedures for sample size calculation. With more sample size options than any other packages, N Solution 2007 is the useful tool for sample size calculation in pharmaceutical research and development.

Developed base on best-seller

N Solution 2007 was developed based on the Sample Size Calculations in Clinical Research Third Edition by Chow, S.C., Shao, J., and Wang, H.. This book is a best seller in Amazon.com which provides a comprehensive and unified presentation of various test statistics, formulas and procedures for sample size calculation that are commonly employed at various phases of clinical development. N Solution 2007 implements almost all of test statistics, formulas and procedures described in this book. N Solution 2007 contains more procedures for sample size calculations than any other software applications.

Comments and Reviews

The strengths of this program are its ease of use, the functionality of its features, and its unique ability to organize data in ways that are not possible with other programs. N Solution 2007 is an excellent program, not only for the sample size calculations that it can perform, but for the powerful further analysis that it provides.

- Min (Annie) Lin, PhD, Assistant Professor, Duke University School of Medicine