Question 41 (1 point) In a regression analysis, if the underlying residuals are small, it is likely that the R2 will be closer to 1. True False Question 42 (1 point) As part of the basic hypothesis testing procedure, it is optional to determine if a test is two-tailed or one-tailed prior to running the test in QI macros. True False Question 43 ( 0.5 points) The effect of one of the replicates in an experiment is called the main effect. True False Question 44 (1 point) Brad is attempting to define the levels of the factors that will be tested during a DOE. During this discussion, a colleague points out that a day with excessive wind may influence one of the factors. In this case, wind is a and could be mitigated by performing this test indoors. a) controlled experiment b) control factor c) noise factor d) uncontrollable factor Question 45 (1 point) The effect of proposed process changes on the wider system must be taken into consideration If not, it is possible there could be a) unintended consequences b) upset stakeholders c) negative results downstream in the process d) all of the above