please help!!

In a baseball bat operation, data was kept on the final length of the bat after the lathe operation which is important as a quality measure. The target length for the bat is 33.00 inches. The lengths came from 8 observations. (If you have had Statistics, you will know that we need probably more than 31 observations for this problem to have statistical validation, but I did not want to make the math so hard.) length 1 33.10 length 2 32.90 length 3 length 4 33.30 length 5 length 6 length 7 33.10 length 8 33.10 32.80 33.00 33.10 79. Calculate the mean of this bat production process 80. Calculate the standard deviation of this bat production process