Answer:
Step-by-step explanation:
given,
mean weight of bag (μ) = 32
standard deviation (σ) = 0.32
percentage of bag heavier = 4.5%
weight of the bag less than 4.5 % = 100 - 4.5
= 95.5%
we have to determine the z- value according to 95.5% or 0.955
using z-table
z-value = 1.70
now, using formula



