Mathematics, 11.02.2021 21:50, 182075
The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 7.8309 years. What percentage of individual aircraft have ages between 10 years and 16 ​years? Assume that a random sample of 81aircraft is selected and the mean age of the sample is computed. What percentage of sample means have ages between 10 years and 16 ​years?
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The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard de...
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