Rhubarb fool. By Antony Worrall Thompson. Cream, with its smooth velvety richness, is the ultimate indulgence food. It is the basis or the crowning glory of innumerable desserts, from panna cotta to cream cakes, and adds richness and depth to creamy stews and pasta dishes.
Say Î¸ {\displaystyle \theta } is the average increase in shoe size for upper-class people compared to middle-class people: then the Wald test can be used to test whether Î¸ {\displaystyle \theta } is 0 (in which case social class has no association with shoe size) or non-zero (shoe size varies between social classes).
Urine Drug Testing. Urine drug testing (UDT) is widely used for testing for opioids and illicit drugs. There are two types of UDT: a screening test and a confirmatory test. The screening test uses an immunoassay to look for the parent drug and/or metabolite.