Find Mean and standard deviation

[jaffar]

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

 

[math_celebrity]

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