31. Solving a chemistry problem

31. Solving a chemistry problem

When determining the concentration of potassium permanganate, three students obtained the following results (mol/l):
0.1013; 0.1012; 0.1012; 0.1014;
0.1015; 0.1012; 0.1012; 0.1013;
0.1013; 0.1015; 0.1015; 0.1013.
Calculate the standard deviation of a single determination and the confidence interval of the mean for P=0.95.

Additional information:

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.