Here is the data.
131.15 135.69 130.91 124.54 129.64 128.77
130.72 128.33 128.24 129.65 130.14 129.29
128.71 129.00 129.39 130.42 129.53 130.12
129.78 130.92 131.15 130.69 130.91 129.54
129.64 128.77 130.72 128.33 128.24 129.65
(D) Construct a two sided confidence interval on the mean sodium content.