12. A hotel manager is interested in the mean length of stay for his guests.

 12.   A hotel manager is interested in the mean length of stay for his guests.  A random sample of 16 guests produced amean length of stay of 4.3 nights with a standard deviation of 1.2 nights.  Assume the distribution of lengths of stay forguests follows a normal distribution.

Compute a 95% confidence interval for the mean length of stay for all guests of this hotel.

Interpret the interval from part a) in the context of the problem.