Help on part B

mathxl.com SU FA20 Statistics HLTH 2305-086, 087 Victor Bencosme & |09/30/20 12:54 PM Homework: Section 2.5 Homework Save Score: 0 of 1 pt 11 of 12 (10 complete) HW Score: 79.58%, 9.55 of 12 pts 2.5.49 Question Help A certain brand of automobile tire has a mean life span of 37,000 miles and a standard deviation of 2,250 miles. (Assume the life spans of the tires have a bell-shaped distribution.) (a) The life spans of three randomly selected tires are 35,000 miles, 38,000 miles, and 31,000 miles. Find the z-score that corresponds to each life span. For the life span of 35,000 miles, z-score is - 0.89 (Round to the nearest hundredth as needed.) For the life span of 38,000 miles, z-score is 0.44. (Round to the nearest hundredth as needed.) For the life spa., Question ) miles, z-score is - 2.67 . (Round to the nearest hundredth as needed.) According to the z-scores, would the life spans of any of these tires be considered unusual? Yes O No (b) The life spans of three randomly selected tires are 32,500 miles, 41,500 miles, and 37,000 miles. Using the empirical rule, find the percentile that corresponds to each life span. The life span 32,500 miles corresponds to the th percentile. The life span 41,500 miles corresponds to the th percentile. The life span 37,000 miles corresponds to the th percentile. Enter your answer in the edit fields and then click Check Answer. All parts showing Clear All Check