Suppose that the spinal canal cross-sectional area in square cm between vertebra L5 and S1 for certain patients has a distribution with mean 3.31 and standard deviation 1.5. What is the probability that the average area for a sample of 40 is larger than 3.75?

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Chapter1: Combinatorial Analysis
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Suppose that the spinal canal cross-sectional area in square cm between vertebra L5
and S1 for certain patients has a distribution with mean 3.31 and standard deviation
1.5. What is the probability that the average area for a sample of 40 is larger than
3.75?
Transcribed Image Text:Suppose that the spinal canal cross-sectional area in square cm between vertebra L5 and S1 for certain patients has a distribution with mean 3.31 and standard deviation 1.5. What is the probability that the average area for a sample of 40 is larger than 3.75?
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