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can someone help please We assume that the amount of sleep in hours that a cadet gets per night is normally distributed with unknown mean
can someone help please
We assume that the amount of sleep in hours that a cadet gets per night is normally distributed with unknown mean and unknown variance. A survey of the 13 cadets from our class gives a sample mean of 6.25 hours of sleep per night, and a sample standard deviation of 1.5. Let T = X s/ n .
1- What is the distribution of T?
2- Give a 95% confidence interval for , the true average hours of sleep per night.
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