I need an answer within 15 minutes pleaseIts timing and I have to check with my answer

Replacement times for Maytag washer and dryer sets are normally distributed with a mean of 5.3 years and a standard deviation of 1.4 years. Round all final answers to 3 decimals. (a) Find the replacement time (in years) that separates the top 23 % from the bottom 77% . (b) If the manufacturer wants to provide a warranty time so that only 5 % of the washer and dryer sets will be replaced before the warranty expires, what length of time (in years) would you recommend for the warranty