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\textbf{\lr{The null distribution}}\\
\textit{\lr{The null distribution}}\\
\textbf{\textit{\lr{The null distribution}}}


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\bibitem{be1} 
Aarset, M.V., 1985.\textit{\textbf{The null distribution for a test of constant versus bathtub failure rate}}. Scandinavian Journal of Statistics\textbf{12}  (1), 55–68.
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