A population distribution is normally distributed with a μ = 57 and a σ = 7. What is the probability of obtaining a sample mean less than 55 if n = 18?

Name: A population distribution is normally distributed with a μ = 57 and a σ = 7. What is the probability of obtaining a sample mean less than 55 if n = 18?
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The Answer of A population distribution is normally distributed with a μ = 57 and a σ = 7. What is the probability of obtaining a sample mean less than 55 if n = 18?

A Population Distribution Is Normally Distributed with a μ =