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Designs: Including Cross-Over, Stepped-Wedge, Cluster Randomized
Statement Generator
IQ/OQ Procedures
In this table we could enter the expected means in each of the three groups and derive a value for the variance of means by entering the values, selecting compute and then clicking transfer to place it in the main table.
The installation qualification tool ensures that all of the files that are expected are present and that their integrity has been maintained.
The operational qualification tool ensures that every calculation used in nQuery is still giving the same results as expected through our internal testing. Both of these tools are designed to be easy to use and intuitive and to provide results that can be easily read by anyone in the organization.
With hundreds of tables for different study designs and tests you can be confident that you will have a validated sample size determination method appropriate for your study. In our sample size software, each sample size table is thoroughly tested and fully validated against the latest regulatory requirements.
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