Question
The time it takes broken bones of a given size and type to heal is normally...
The time it takes broken bones of a given size and type to heal
is normally distributed. A random sample of 17 simple arm breaks
occurring in people in their twenties took an average of 50 days to
heal with a standard deviation of 5 days.
A) Find a 95% confidence interval for the healing time for all
broken bones of this type
B) Find a 95% confidence interval for the population variance and standard deviation
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Answer #1
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