type 2 error

type 2 error

an error which occurs when using data from a sample that fails to demonstrate a specific association when such association is present in the population.
References in periodicals archive ?
A Type 2 error is when you let a guilty man go free.
Each of the SPCs was classified as either a Type 1 error (a complete transposition between patients) or Type 2 error (contamination of the patient's tissue with one or more unrelated patients).
TABLE 7 Out of Sample Predictions of Financial Distress for Australian General Insurers 1999 Reg'n 1999 Reg'n 2000 Pred'n 2001 Pred'n (1999 I'Vars) (1999 I'Vars) Distress 1 Type 2 Error Rate (%) Type 1 Error Rate (%) 5 35.
The packaging for the CD has been designed by honorary Hope of the States members Type 2 Error.
In the limit of 0% type 1 errors, the average type 2 error rate is 49% and 29%, respectively.
Concepts of sampling error, significant differences, and type 1 and type 2 errors are stressed throughout.