### TTest Statistical Significance Example and Definition

A statistically significant ttest result is one in which a difference between two groups is unlikely to have occurred because the sample happened to be atypical. Statistical significance is determined by the size of the difference between the group averages, the sample size, and the standard deviations of the groups.

### Particle Size Specifications for Solid Oral Dosage Forms ...

May 01, 2010· D10, D50, or D90 is defined as the size value corresponding to cumulative size distribution at 10%, 50%, or 90%, which represents the size of particles below which 10%, 50%, or .

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