Answer
$Nonparametric\:procedures\:do\:not\:require\:a\:specific\:population\:distribution.$
Work Step by Step
$Nonparametric\:hypothesis\:test\:is\:a\:distribution-free\:hypothesis\:test\:because;\:the\:population\:is\:not\:required\:to\:follow\:a\:particular\:distribution\:in\:the\:nonparametric\:hypothesis\:tests.$