When this posts I should be just getting home from Nepal (jet lag is no place to write posts). So, this post and the next couple are homework for you. Take a look, work the problem, solve it, then show your work. Comment with why you chose your response and why you didn’t select one of the others.
From question 19 of ASQ CRE 2009 sample exam.
19. In the model y = 12.1x1 + 5.3x2 + å, the x1 follows a Weibull distribution with a shape parameter of 3.5 and a characteristic life of 20; x2 follows a lognormal distribution with a mean of 16 and a standard deviation (ó) of 2.5; and å is a random variable with a mean of 0 and a ó of 1. In this situation, which of the following methods would be best to evaluate the distribution of y?
(A) Regression analysis
(B) Monte Carlo simulation
(C) Analysis of variance
(D) Numerical integral
Best means this one is subjective (never did like this type of question) and it provides a great start to a discussion on why you select your answer. Please comment and defend your selection.
Basic Statistics (article)
First 5 Questions (article)
Sample Size – success testing (article)