The weights of the sugar packages are normally distributed. We select a random sample of 18 sugar packages. What is the probability that the sample will have a mean weight within of the population mean
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- If the population weights are normally distributed with mean μ and standard deviation σ, then for a sample of size n = 18, the sample mean X̄ is normally distributed: X̄ ~ N(μ, σ^2/n). Show more…
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