Answer
8.13am approximately
Work Step by Step
Μ=28, σ=5
Z: 0.01, From the table, z value = -2.33
P(z \leq -2.33) : z = $\frac{x-28}{5}$ =-2.33
X = 16.35minutes
8:30am - 16.35minutes = 8.13am approximately
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