l Sample size Determination for u from an Infinite population Mean note o is known and e, the bound within which you want to estimate u, is given The interval half-width is e, also called the maximum likely error: Solving for n, we find: o 2002 The Wadsworth GroupSample Size Determination for µ from an Infinite Population • Mean: Note s is known and e, the bound within which you want to estimate µ, is given. – The interval half-width is e, also called the maximum likely error: – Solving for n, we find: 2 2 2 e z n n e z s s = × = × © 2002 The Wadsworth Group