6. A new process is proposed for the manufacture of steel shafts, as given in the example problem on page 566 .

Data are 6.38, 6.40, 6.41, 6.38, 6.39, 6.36, and 6.37.

a. What is the expected loss?

b. Is the new process better than the process of the example?

c. What future improvements might be tried?

Hint: Compare average with target and the standard deviations of both processes.