Part 1: Multiple Choice [Tl] points, 2 points fur each question} Each questt'un only has one best choice. 1Writn: "your choice in the blank after each quesun. 1. How my observations shouhl be taken to be 90% condent (2-thng within : 2% of this 31.213131 tima a machjhc is husy'ifit is hljm'i that aw: machjna is mum: ".I'Cl'h': fth: time? A) T39 obsen'ations B] 2,921 artisan-"aims C) 355 uhsarvatins D} 1,421 ohm-'ations