Investopedia / Xiaojie Liu One-tailed tests in statistics focus on one direction in the distribution to determine if a sample mean ... the one-tailed test to validate investment hypotheses by ...
Statistically Significant Improvement in Percent Predicted Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) Versus Placebo at Week 24 (Primary Endpoint) and Week 48 (Secondary Endpoint) ...