T Test Websites
Weerahandi Home Page
XPro for analysis of clinical trials data, rapid drug approvals, and agricultural & industrial experiments. XPro provides exact powerful tests & confidence intervals in mixed models, repeated measures, variance components, and growth cureves
T-Test Statistics Calculator
A free online t-test calculator. Statsisitcs calculator computes p values for 1-tailed or 2-tailed t-tests. Performs the t-test for groups with equal variance, unequal variance, and matched groups (paired groups).
Weerahandi Home Page
XPro for analysis of clinical trials data, rapid drug approvals, and agricultural & industrial experiments. XPro provides exact powerful tests & confidence intervals in mixed models, repeated measures, variance components, and growth cureves
MVP Programs — Easy-to-use statistical
Easy-to-use statistical software that users love
SAMC, Inc. - Statisticians .net
Professional research design, statistical analysis, data management, and professional editing for business, academia, and graduate students.
Far West Research - Statistical Consulting
Statistical analysis, data modeling & data mining, design of experiments, questionnaire design, training services (SPSS, basic statistics)