please help me with question 54! Please and thank you!

54. The heights of women are normally distributed. Suppose it is known that the population standard deviation is 2.5 inches. a. Alice, a 63 inch tall woman, has a standard score of -0.32 for this distribution. Use this information to find the population mean. b. If Bianca is 65 inches tall, compute the standard score for her height. 55. Suppose that the age a child gets their first cell phone follows a normal distribution with a mean of 10.0 years, and a standard deviation of 1.5 years. a. What is the 72nd percentile for this distribution? b. Approximately what percentage of children gets their first cell phone at an age between 8.5 and 11.5 years? 56 Cunnace that during the month of Fahmiam, the lotis temperature in Detroit fallonre a normal Previous Z search O P O SX370000 7VL30