GAQM Related Exams
CLSSBB Exam
An engineer wants to try two hardening ovens to see whether they have different hardness scores. She cuts 8 pieces of bar stock in half, putting half of each in oven A and the other half in oven B. The following data are collected:

Do the data indicate that the ovens have different average scores? Assume differences are normally distributed.
A stable, normally distributed process with specification 3.50 .03 has = 3.51 and = .016. What percent of the production violates specification?
A ____ from a sample is used to estimate a population _____. The two words that best fill these blanks are: