Answer
0.3085. This result is not unusual as P > 0.05
Work Step by Step
Here we have: μ = 2600 and σ = 50
To calculate P(μ > 2625), we need to find the z-score:
$z = \frac{x - μ}{σ}$
$= \frac{2625-2600}{50}$ = 0.5
P(z > 0.5) = 0.3085, hence:
P(μ > 2625) = 0.3085
