“…Other than the citations that have already been provided, we simply mention the following works in an alphabetical order for brevity: Allen, Gonzalez, and Gokhale (1972), Anscombe (1950), Barrigossi (1997), Berti et al (1992), Johnson et al (1995), Marshall (1988), Mukhopadhyay (2002), Young (1991, 2004), Mulekar, Young, and Young (1993), Nyrop and Binns (1991), Onsager (1976), Plant and Wilson (1985), Sterling (1976), Sylvester and Cox (1961), Waters (1955), Wiles et al (1992), Wilson (1982), Young (1994Young ( , 2004, and Zou (1998). Sequential and two-stage sampling that are most relevant to this present investigation can be found in Willson (1981), Willson and Folks (1983), and Mukhopadhyay and Diaz (1985) when the clumping parameter in a negative binomial model is assumed known.…”