## Introductory Statistics 9th Edition

μ = ? σ = 0.35 ounce Area to the left $P(x \geq 64 )$= 1-0.95 = .05 ounce From Table IV, this value of z= 1.645 Z = $\frac{x- μ }{ σ }$ $-1.645*0.35$ = 64- μ $\mu$=64.58 ounce