Multivariate Techniques in Business. In order to be meaningful, market survey questions must often be complex and multilayered and answers can vary depending on a number of conditions and factors.

A multivariate extension of the exponentially weighted moving average (EWMA) control chart is presented, and guidelines given for designing this easy-to-implement multivariate procedure. A comparison ...

A number of multivariate exponential distributions are known, but they have not been obtained by methods that shed light on their applicability. This paper presents some meaningful derivations of a ...