A population of values has a normal distribution with u = 207.6 ando = 66.3. You intend to draw a random sample of size n 128. = Find P31, which is the mean separating the bottom 31% means from the top 69% means. P31 (for sample means) = Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Question Help: D Post to forum