a$.$ Calculate the process capability index and the process capability ratio values.

The process capability index Upper C Subscript pkequals

$$

$0\mathrm{.}478.($Enter your response rounded to three decimal places.$)$

Part $3$

The process capability ratio Upper C Subscript pequals

$$

$0\mathrm{.}478.($Enter your response rounded to three decimal places.$)$

Part $4$

b$.$ Suppose management would be happy with$$ three$-$sigma performance. What conclusions is management likely to draw from the capability$$ analysis?

Since Upper C Subscript pk is

$$

the critical$$ value, the process

is

capable at the$$ three$-$sigma level.