= A population of values has a normal distribution with 145.6 and = 17.2. You intend to draw a random sample of size n = 74. Please answer the following questions, and show your answers to 1 decimal place. Find the value separating the bottom 55% values from the top 45% values. Enter an integer or decimal number, accurate to at least 1 decimal places [more..] Find the sample mean separating the bottom 55% sample means from the top 45% sample means.