If H is the event the national market is favorable and E is the event the test market is favorable, data are a prior estimate P(H) of the likelihood the national market is sound, and data \(P(E|H)...If H is the event the national market is favorable and E is the event the test market is favorable, data are a prior estimate P(H) of the likelihood the national market is sound, and data P(E|H) and P(E|Hc) indicating the reliability of the test market.