American Institute of Mathematical Sciences

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2006, 3(2): 385-387. doi: 10.3934/mbe.2006.3.385

Remark on the Paper by Rao And Kakehashi (2005)

Saralees Nadarajah 1,

1. 

Department of Statistics, University of Nebraska, Lincoln, Nebraska 68583, United States

Received  January 2006 Revised  January 2006 Published  February 2006

The paper by Rao and Kakehashi [1] uses the Weibull distribution (given by equation (3) in the paper) and a truncated version of it (given by equations (4) and (5)) to model HIV/AIDS data in India. After a careful reading, I have found that all of the results presented in the appendix are incorrect (starting with equation (11) itself). Instead of pointing out all of the specific errors, I have chosen to give the correct formulas (and a brief outline of their derivation) for the $r$th moment of the truncated Weibull distribution.
Keywords: Moments, Truncated Weibull distribution., Incubation time distribution.
Mathematics Subject Classification: 92A15, 62A1.
Citation: Saralees Nadarajah. Remark on the Paper by Rao And Kakehashi (2005). Mathematical Biosciences & Engineering, 2006, 3 (2) : 385-387. doi: 10.3934/mbe.2006.3.385
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