MY NOTES ASK YOUR TEACHER 17. 1-/2.77 Points! DETAILS BOUNDERSTAT126.3.030 MI. Acme bemandeturer of crystal watches Accome researchers have shown that the watches have an average life of 36 months before certain electronic components deteriorate, causing the watch to become the dard deviation of watch times is months, and the distribution of times mormal (a) Arme sau refund on any defective watch for 2 years after purchase, what percentage of total production will the company expect to replace? (Hound your answer to two decimal he does not want to make refunds on more than of the watches it makes, how long should the guarantee period be to the nearest month)? Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of 3 months before certain electronic components deteriorate, causing the watch to become eliable. The standard deviation of watch fetimes is 4 months, and the distribution of fetimes is normal (a) If Accrotime guarantees a full refund on any defective watch for 2 years after purchase, what percentage of total production will the company expect to replace(Round your answer to two decal (b) of Accrtime does not want to make refunds on more than 12% of the watches it makes, how long should the guarantee period be to the nearest month? months