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A random sample of n equals 100 observations is selected from a population with mu equals 31 and sigma equals 24 . Approximate the probabilities
A random sample of n equals 100 observations is selected from a population with mu equals 31 and sigma equals 24
.
Approximate the probabilities shown below.
a.? P(x overbar greater than or equals?28)
b.? P(22.1less than or equals x overbarless than or equals?26.8)
c.? P(x overbar less than or equals?28.2)
d.? P(x overbar greater than or equals?27.0)
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