Step 1
Suppose C = 0.90.
=> δ = 1 – 0.90 = 0.10
=> zδ/2 = z0.10/2 = z 0.05 = 1.645
Dr. Christina Hayes
Wilson 2-263
Department of Mathematical Sciences
Montana State University
Bozeman, MT 59717
phone: 406-994-6557
fax: 406-994-1789
christina.hayes@montana.edu
(Email will likely reach me faster than a phone call)