It has recently been proposed that the true upper normal limit of serum alanine aminotransferase (ALT) is much lower than that listed by the manufacturers of commercially available assays.

To describe all the possible values that a rounded number could be, we use lower and upper bounds. The lower bound is the smallest value that would round up to the estimated value. The upper bound ...

They are what is acceptable to the customer. If the specifications, either upper or lower, are inside of the control limits ...

The preceding chapter was concerned with basic assumptions and theorems used in limit analysis. In the following two chapters we shall discuss in more detail some of the basic techniques of applying ...