nQuery Advisor 統計分析軟體
nQuery Advisor提供一簡單可靠及有效的方法，以決定樣本的大小及統計的幕數。提供專家計算找出可靠區間及等效分析，來決定樣本的大小
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 for leading statisticians, research organizations, and pharmaceutical companies.
nQuery Advisor® helps you provide the standard deviation and effect size information you need to make sample size and power analysis computations. nQuery Advisor® also writes up the sample size/power decision. These automated sample size justification statements make it easy to report the sample size/power decision in the correct language and format in accordance with FDA/ICH guidelines.
Features
Equal or unequal n’s
Finite population corrections
Cluster sample corrections
Kupper-Hafner CI modification
Plots
Statements
Effect size assistance
References
Standard deviation calculator
Column names
Tables, statements, guides in RTF format
Decimal display controls
Create randomization list