Problem $10-1($Algo$)$

Specifications for a part for a $3-$D printer state that the part should weigh between $24\mathrm{.}7$ and $25\mathrm{.}7$ ounces. The process that produces the parts has a mean of $25\mathrm{.}2$ ounces and a standard deviation of $20$ ounce. The distribution of output is normal. Use Table$-$A$.$

a$.$ What percentage of parts will not meet the weight specs? $($Round your $"$z$"$ value and final answer to $2$ decimal places.$)$