Ohta, Hiroshi Simplified design of variables sampling plans for assuring simultaneously both mean and standard deviation in lot quality. (English) Zbl 0983.62090 IAPQR Trans. 22, No. 2, 95-105 (1997). MSC: 62P30 PDFBibTeX XMLCite \textit{H. Ohta}, IAPQR Trans. 22, No. 2, 95--105 (1997; Zbl 0983.62090)
Kanagawa, Akihiro; Ohta, Hiroshi A criterion for the unique determination of single sampling attribute plans. (English) Zbl 0733.62106 IAPQR Trans. 16, No. 1, 1-11 (1991). MSC: 62P30 PDFBibTeX XMLCite \textit{A. Kanagawa} and \textit{H. Ohta}, IAPQR Trans. 16, No. 1, 1--11 (1991; Zbl 0733.62106)
Ohta, Hiroshi GERT. Analysis of the economic design of control chart. (English) Zbl 0468.60088 IAPQR Trans. 5, 57-65 (1980). MSC: 60K20 90B25 PDFBibTeX XMLCite \textit{H. Ohta}, IAPQR Trans. 5, 57--65 (1980; Zbl 0468.60088)