Question: 68. Let Xl ' x be a sample from a distribution with density 1 (Xl) (XII) -;;;f ..f , where I( x) is either zero

68. Let Xl" '" x" be a sample from a distribution with density 1 (Xl) (XII) -;;;f ..·f ,

where I( x) is either zero for x < 0 or symmetric about zero. The most powerful scale-invariant test for testing H: 1=10 against K :I = II rejects when LX! un-III (ux I) .. . II (ux n) du o >

c. !oooun -I/o(uxl ) ... /o(uxn) do

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