Score: 0/20 1/2 answered Question 2 Replacement times for Maytag washer and dryer sets are normally distributed with a mean of 4.4 years and a standard deviation of 1.2 years. Round all final answers to 3 decimals. (a) Find the replacement time (in years) that separates the top 20 % from the bottom 80 % . (b) If the manufacturer wants to provide a warranty time so that only 2 % 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