The length of timber cuts are normally distributed with a mean of 95inches. In a random sample of 45 boards, what is the probability that the mean of the sample will be between 94.8 inches and 95.8 inches?
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Expert's answer
2020-09-29T18:10:38-0400
The following information about the mean and standard deviation has been provided:
μ=95, σ=0.52, n=45
We need to compute Pr(94.8≤Xˉ≤95.8)The corresponding z-values needed to be computed are:
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