1. let yi, i : 1, .., n be independently- observed non- negative integers drawn from a Poisson distribution whose density is given by yi f ( y : 0 ) = , yi = 0 , 1, 2 .... where yi 1 = 1 x 2 x ... x ( y i - ( ) xyi is known as the factorial operator . The poisson distribution has the properties Flyi) = 0 and Flying= 040 a. Describe how can test the moment condition ( y : 2 ) = 0 +0 after ML estimation Chint : Use an IM-test based for conditional moments and explain how It can be