Question $2$Plastic strips that are used in a sensitive electronic device are manufactured to a maximumspecification of $305\mathrm{.}70$ mm and a minimum specification of $304\mathrm{.}55$ mm$.$ if the strips are less thanthe minimum specification, they are scraped; if greater than the maximum specification, theyreworked. The part dimensions are normally distributed with a process mean of $305\mathrm{.}20$ mm andprocess standard deviation of $0\mathrm{.}25$ mm$.$a$)$ Estimate the percentage of conforming items that will be produced.b$)$ What percentage of the product is scrap and what percentage is rewor