N 6 9 July 8, 2019 16 32 64 128 N 6 9 x 5 N 6 90 confidence N 6 9 5 N 6 97 N 6 =( 9x3 )- 5 N 6 9 8 N 6 9 35 N 6 9 10 N 6 9.6 N 6 91 N 6 =- 9 2n N 6 9 18 N 9 6 27 N 94 6 N 92 6