Question 975500
we will use the z-score equation to identify the minimum weight to guarantee that 90% of the bags will have more than that weight, now
z-score associated with a probability of .10 ( 1 - .90 ) is -1.28
using z-score calculation
-1.28 = (X - 36) / 1.5
X - 36 = -1.28 * 1.5
X = (-1.28 * 1.5) + 36
X = 34.08 grams