13. A new process has been developed and the temperature results are 21C for the average and 0.8C for the sample standard deviation (n = 5).

a. What is the S/N ratio for nominal-the-best?

b. How much improvement has occurred? Compare to the nominal-the-best Example Problem 14-5 answer of 20.41 dB.

c. If you change the units of the example problem and this exercise, will you get the same results? Prove your conclusion.