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Statistical power analysis and sample size determination are crucial elements of study design. A study which has too few subjects may produce inconclusive results. But, neither do we want to waste scarce resources on a study which is larger than necessary.
nQuery Advisor's® intuitive and easy-to-use interface and superb range of sample size tables makes it the sample size software of choice.
Statistical Solutions Ltd., designs, develops and distributes unique statistical software applications for statisticians, clinical researchers and data analysts. Each application addresses specific critical issues that arise in the design and statistical analysis of clinical trials, research surveys and other scientific investigations.
Originally established as the European subsidiary of BMDP Statistical Software Inc. in 1984, Statistical Solutions became an independent software developer in 1995 and with the immediate opening of our US office in Boston, signalled its intention to service global markets. Since then, Statistical Solutions has seen its product range and customer base expand and the company is now a highly-regarded software partner in the clinical trials and data analysis industries. More
Full selection of our statistical software products
- nQuery Advisor: Sample Size and Power Analysis
- SOLAS for Missing Data Analysis: Multiple & Single Imputation Techniques
- BMDP 2009: Comprehensive Statistical Analysis Software
- EquivTest: Tests & Confidence Intervals for Equivalence Testing
- nQuery Advisor eTutor: Certified Online Training Course
- NCSS: Statistical Analysis & Graphics
- Comprehensive Meta Analysis: Program for Research Synthesis