28. The Salty Snack Company has decided to analyze the weight of its newly introduced family-size corn chip bags using a Range Control Chart. The grand mean (centerline) of recent x-bar charts is 275 grams (g). On the Range Control Chart, the upper control limit is 28.4 g, and the lower control limit is 0. A sample of five bags is tested every hour. Weights in grams in a new sample were 233, 248, 267, 225 and 260 g. What is the best conclusion(s) can you draw based on this information? 1. II. II. IV. The process is not under control Process variability has remained the same Process variability has increased from the previous average range The process is under control V. The information is not sufficient to draw any conclusions A I& II B1&| c) V D) III & IV E) II & IV