Root Cause 6 Questions Hypothesis testing is used to determine which process factors are the cause of the variation in our output that is causing defects. TRue Statistical data analysis enables us to validate the root causes with 95% confidence in the results. True In hypothesis testing we are trying to determine if we can reject the alternative hypothesis (groups are different). False “r-squared” is the square of the correlation coefficient and is the measure of how much variation in the process output is accounted for by the model. True An r = +0.86 would indicate which of the following (choose one). | Strong positive relationship When conducting a hypothesis test, we usually treat "P is less than 0.05" as indicative that th...