Throughout any project, you’re going to gather up quite a bit of data. Now, this can be broken down into two categories: ...

Variables-sampling plans are more efficient than attributes-sampling plans. If the quality characteristic is the life of a product, however, variables sampling can be very time consuming and expensive ...

1If not explicitly defined, a variable's type and length are implicitly defined by its first occurrence in a DATA step. 2The minimum length is 2 bytes in some operating environments, 3 in others. See ...