one trunk can carry 5068.8 lb. weight of boxes that it carries have a mean of 75lb and a standard deviation of 16 Ib. For Sample size of 64 ,find the mean and standard deviation of /x

Sample Mean = Population Mean Sample Mean = 75 Sample Standard Deviation = Population Standard Deviation / Sqrt(n) Sample Standard Deviation = 16/sqrt(64) Sample Standard Deviation = 16 / 8 Sample Standard Deviation = 2