This Phase 1 random-sample testing also will utilize Vault Health, but in a different manner. Once samples are provided on campus, the test kits will be sent by the university to the company for ...

In this article, the random-walk theory of stock-price behavior is tested empirically in relation to a number of decision rules based upon past stock-price movements. A random sample of thirty stocks ...

In high dimensions, the classical Hotelling's T² test tends to have low power or becomes undefined due to singularity of the sample covariance matrix. In this article, this problem is overcome by ...