The Wald interval is typically used to assign confidence to the accuracy of activity sampling studies. It is known the performance of the Wald interval is poor, especially when the observed probability is near zero or one. The suitability of the Wald interval for activi... View more
Adam, E.E. and Ebert, R.J., (1992), Production and Operations Management: Concepts, Models and Behaviour. Prentice-Hall Inc, New Jersey, USA, 314-315.
Agresti, A., and Coull, B., (1998), “Approximate is better than 'exact' for interval estimation of binomial proportions”, The American Statistician, 52 (2), 119-126.
Agresti, A. and Caffo, B., (2000), “Simple and effective confidence intervals for proportion and differences of proportions result from adding two successes and two failures”, The American Statistician, 54 (4), 280-288.
Anderson, D.R., Sweeney, D.J., Williams, T.A., Freeman, J. and Shoesmith, E., (2007), Statistics for Business and Economics. Thomson, London, UK, 273-276.
Barnes, D., (2008), Operations Management: An International Perspective. Thomson Learning, London, UK, 345.
Bicheno, J. and Holweg, M., (2009), The Lean Toolbox: The Essential Guide to Lean Transformation. Picsie Books, Buckingham, UK, 130-131.
Bicheno, J., (2008), The Lean Toolbox for Service Systems. Picsie Books, Buckingham, UK, 271-272.
Blyth, C.R. and Still, H.A., (1983), “Binomial confidence intervals”, Journal of the American Statistical Association, 78 (381), 108-116.
Brisley, C.L., (2001), “Work sampling and group timing technique”, Chapter 17.3 in Zandin, K.B., (2001), Maynard's Industrial Engineering Handbook. Fifth Edition, McGraw-Hill, New York, USA, 17.47-17.64.
British Standard 3138, (1992), “Glossary of terms used in management services”, p12.