$$a$)$ The upper and lower $3-$sigma control chart limits$$ are:

Part $2$

UCL Subscript p $=$

$$

$0\mathrm{.}094($enter your response as a number between $0$ and$1,$ rounded to three decimal$$ places$).$

Part $3$

LCL Subscript p $=$

$$

enter your response here $($enter your response as a number between $0$ and$1,$ rounded to three decimal$$ places$).$