Given a normal distribution with μ equals = 103 σ= 25 you select a sample of n equals = 25.
What is the probability that X overbar
is between 90 and 90.5?
P(90<Xoverbar<90.5) =
μ equals = 103 σ= 25
n = 25
z1 = (90 - 103)/25
z1 = -0.52
z2 = (90.5 - 103)/25
z1 = -0.5
P = 0.007
Given a normal distribution with μ equals = 103 σ= 25 you select a sample of...
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