117. Solving a chemistry problem
In three parallel samples of the steel sample, the mass fraction of chromium was determined by the photometric method: 1.15; 1.18; 1.07%. calculate the boundaries of the confidence interval of the average value of the mass fraction of chromium in steel at P= 0.95 and the relative error of the analysis.
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
No customer reviews yet.