Two-stage sequential tests for proportions and means with follow-up period

✍ Scribed by S.C. Choi

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 529 KB
• Volume: 10
• Category: Article
• ISSN: 0898-1221
• DOI: 10.1016/0898-1221(84)90062-2

✦ Synopsis

Communicated by I. Norman Katz

Ahstraet-This paper extends a procedure, based on [l], wherein a sequential probability ration test (SPRT') is combined with a likelihood ratio test that incorporate both sequential observations and additional delayed observations. Two two-sample sequential tests are eonsideredz one for binomial parameters and the other for the means of normal distributions. The essential feature of the method enables us to construct a SPRT with the risk probabilities set greater than the desired level, depending on a number of delayed observations. The terminal decision based on a likelihood ratio test can be made with the desired risk level. The adequacy and advantage of the procedure are discussed and a number of computational formulas is presented to facilitate its applications.