For Samples of the Specified Size from the Population Described $\overline { x _ { 1 } }$

For samples of the specified size from the population described, find the mean and standard deviation of the samplemean $\overline { x _ { 1 } }$
-One truck from Lakeland Trucking, Inc. can carry a load of $5068.8 \mathrm { lb }$ . Records show that the weights of boxes that it carries have a mean of $75 \mathrm { lb }$ and a standard deviation of $16 \mathrm { lb }$ . For samples of size 64 , find the mean and standard deviation of $\bar { x }$ .

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