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The time it takes broken bones of a given size & type to heal is normally...

The time it takes broken bones of a given size & type to heal is normally distributed . A random sample of 17 simple arm breaks occurring in people in their twenties took and average of 50 days to heal with a standard deviation of 5 days.) a) Find a 95% confidence interval (ci) for the healing time for all broken bones of this type b) Find a 95% (CI) for the population variance and standard deviation

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