Suppose another mobile phone part B has the design specification of $12\backslash$pm $0\mathrm{.}05$mm

and the penalty cost of $19$ to scrap, determine part B$$s average loss when the

mean of a sample set from the production process is $12\mathrm{.}02$mm and variance is

$0\mathrm{.}1$mm$2$

$.$ Based on the average loss of part A and part B$,$ if part A$$s monthly

production plan is $3,000$ items while part B$$s production plan is $1,000$ items, which

type of part would cause more loss, and what actions can be taken to improve the

situation?