Range Chart 140 120 100 80 Sample Range 60 40 20 0 1 2 3 4 5 6 7 8 9 10 11 12 Sample Number Using the chart from the previous question, what is a more usable conclusion? Houston, we have a problem O Variability in checkout times has recently been lower than usual O Average checkout times have recently been faster than usual The process is getting worse Average checkout times have recently been slower than usual O Variability in checkout times has recently been larger than usual