Homework 19.3

Problem 33

1.645 * sqrt(0.15*0.85/n)

384

Problem 34

2.326 * swrt(0.22 * 0.78/n)

n = 581

Problem 35

z * sqrt(0.65*0.35/972) =0.025

z = 1.634

CL = 90%

Problem 36

50% with margin of error 3%

This is becuase if 50% of people want the admentment then it’s not “heavily” favored

CL = 98%

0.03 = sqrt(0.52*0.48/1505)