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北京天演融智软件有限公司（科学软件网）前身是北京世纪天演科技有限公司，成立于2001年，专注为国内高校、科研院所和以研发为主的企事业单位提供科研软件和服务的国家。
In nQuery finding the appropriate sample size method for your study is easy. Simply go to select test design and goal window and select the relevant options for your study. All your options will now appear below.
Adaptive Trials
Adjust your sample size based on study data
Design efficient, informative and ethical clinical trials
Includes interim analyses & sample size re-estimation
Optimize financial resources
The two most commonly used plots are the power versus sample size plot and the plot user selected rows plot. The power versus sample size plot allows you to quickly and automatically see what the effect of changing sample size will be on the power in one or more columns.
Bayes Factors
Quantify evidence for one hypothesis to another
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