We know that quantitative analysis approach includes a high level overview of the importance of identifying the problem, developing a model, acquiring input data, developing a solution, testing the solution, analyzing results, and implementation through the DMAIC approach we covered in Module 1. Describe a specific situation where root cause analysis could be conducted.  Which tool would be most effective and why?

Simply reporting measures of central tendency or measures of variability will not tell the whole story. Using the following information, what else does a psychologist need to know or think about when interpreting this information?A school psychologist decided to separate some classes by gender to see if learning improved. She looked at student scores on the final exam and obtained the following information: Students in boy-girl classrooms obtained an average of 71.4 on their final exams with a standard deviation of 10.8 whereas students in single-gendered classrooms obtained an average of 75.9 on their final exams with a standard deviation of 8.2. She concludes that the single-gendered classrooms lead to better learning.1-2 paragraphs

Which of the following statements is true?A. -3 ∈ {x|x is a whole number}B. 0 ∈ {x|x is a whole number}C. 0 ∉ {x|x is a rational number}D. 2 ∉ {2, 4, 6, 8}