The Industry Standard for
Sample Size and Power Calculations
nQuery Advisor's® intuitive and easy-to-use interface and superb
range of sample size tables makes it the choice of leading
statisticians, research organizations, and pharmaceutical companies.
other sample size and power software measures up.
Use nQuery Advisor's Intuitive Tables and Easy-to-Make Plots to
Evaluate a Range of Scenarios
Fold-change analysis table for DNA microarray studies.
(NEW in nQuery 5)
the first time, planners of DNA Microarray studies can easily figure
out what sample size will be needed to detect specific fold-changes
using a specified p-value. You can even compute expected detection
rate when a fold-change threshold is specified. nQuery’s easy-to-use
tables and plots can assist in interpretation of results for
example, in a gene expression study, results for each gene were
compared between two groups (with 3 microarrays each) using a
two-sided 1% t-test. Of the genes with significant differences, only
those genes for which the observed fold-change is greater than or
equal to 2 will be studied further.