PHASE 4 : Because the corrective action was taken to eliminate the special cause of variation, Natalie removes the data for batch 17 from the analysis. The control charts for the remaining days indicate a stable system, with only common causes of variation operating on the system. Then, Natalie and Jim sit down with Dave Martin and several other machinists to try to determine all the possible causes for the existence of oversized and scrapped rollers. Natalie is still troubled by the data. After all, she wants to find out whether the process is giving oversizes (which are downgraded) and undersized (which are scrapped). She thinks about which tables and charts might be most helpful.

a. Construct a frequency distribution and a stem-and-leaf display of the cam roller diameters. Which do you prefer in this situation?

b. Based on your results in (a), construct all appropriate charts of the cam roller diameters.

c. Write a report, expressing your conclusions concerning the cam roller diameters. Be sure to discuss the diameters as they relate to the specifications.

INFORMATION:

Transcribed Image Text:

Batch 1 2 3 7 8 9 4 0.5075 5 0.5075 6 0.5076 0.5076 0.5076 0.5075 0.5076 0.5074 0.5076 0.5076 0.5077 0.5075 0.5075 0.5075 0.5076 13 0.5076 0.5076 14 0.5075 0.5076 15 0.5075 0.5075 0.5076 16 0.5075 17 0.5075 18 0.5075 19 0.5076 20 0.5075 21 0.5075 10 1 2 3 0.5076 0.5076 0.5075 0.5075 0.5077 0.5076 11 12 0.5076 0.5075 0.5076 0.5075 0.5074 0.5075 0.5075 0.5076 0.5075 0.5075 0.5075 0.5076 0.5075 0.5077 0.5073 0.5076 0.5074 0.5076 0.5075 0.5074 0.5073 0.5075 0.507 0.5076 0.5075 0.5074 0.5075 0.5074 0.5072 0.5076 0.5076 0.5077 0.5076 0.5074 0.5075 0.5075 0.5076 0.5076 0.5074 0.5075 0.5076 0.5075 0.5076 0.5075 0.5075 0.5074 0.5074 0.5075 0.5076 0.5075 0.5076 0.5075 0.5076 0.5075 0.5075 0.5075 26 0.5077 0.5076 0.5076 0.5074 27 0.5075 0.5075 0.5074 0.5076 28 0.5077 0.5076 0.5075 0.5075 29 0.5075 0.5075 0.50M 0.5075 23 0.5076 24 0.5075 0.5075 0.5076 0.5076 25 0.5075 0.5075 30 0.5076 0.5075 0.5075 0.5076 0.5075 2985288 0.5076 0.5075 0.5076 0.5074 0.5076 0.5074 0.5076 0.5075 0.5076 0.5075 0.5075 0.5075 0.5075 5 Mean 0.5077 0.5075 0.507/58 0.5075 0.50758 0.5076 0.50752 0.5073 0.50748 0.5073 0.5076 0.50748 0.5075 0.50754 0.5075 0.50756 0.50752 0.50752 0.5075 0.50756 0.5075 0.50752 0.5075 0.50756 0.5074 0.5075 0.50752 0.50746 05075 05074 0.50754 0.50756 0.507-52 0.50748 0.50754 0.50756 0.5075 0.50754 0.5074 0.50748 0.5075 0.50756 0.5075 015075 0.5076 0.5075 0.50758 0.50748 0.50754 10 0.00002 0.50763 025074 0.0002 0.50763 025074 0.0001 0.50763 05074 0.XX13 0.50763 05074 0.0XX3 0.50763 025074 0.0001 0.50763 05074 0.0001 0.50763 05074 0.0002 0.50763 05074 0.0002 0.50763 05074 0.0002 0.50763 05074 0.0001 0.50763 0.5074 0.0002 0.50763 05074 0.0003 0.50763 025074 0.50763 05074 0.0002 0.0XX3 0.50763 025074 0.0XX02 0.50763 05074 0.XX3 0.50763 05074 0.00001 0.50763 05074 0.0001 0.50763 05074 0.0003 0.50763 05074 1E-04 0.50763 05074 0.0002 0.50763 05074 0.0001 0.50763 05074 0.0001 0.50763 05074 1E-04 0.50763 05074 0.0XX3 0.50763 05074 0.XX12 0.50763 05074 Range Ua 0.XX02 0.50763 05074 1E-04 0.50763 05074 0.0001 0.50763 05074 0.50765 0.5076 0.50755 0.5075 0.50745 0.5074 0.50735 www 0 5 10 15 20 25 30 35 Mean UQ. LOL Batch 1 2 3 7 8 9 4 0.5075 5 0.5075 6 0.5076 0.5076 0.5076 0.5075 0.5076 0.5074 0.5076 0.5076 0.5077 0.5075 0.5075 0.5075 0.5076 13 0.5076 0.5076 14 0.5075 0.5076 15 0.5075 0.5075 0.5076 16 0.5075 17 0.5075 18 0.5075 19 0.5076 20 0.5075 21 0.5075 10 1 2 3 0.5076 0.5076 0.5075 0.5075 0.5077 0.5076 11 12 0.5076 0.5075 0.5076 0.5075 0.5074 0.5075 0.5075 0.5076 0.5075 0.5075 0.5075 0.5076 0.5075 0.5077 0.5073 0.5076 0.5074 0.5076 0.5075 0.5074 0.5073 0.5075 0.507 0.5076 0.5075 0.5074 0.5075 0.5074 0.5072 0.5076 0.5076 0.5077 0.5076 0.5074 0.5075 0.5075 0.5076 0.5076 0.5074 0.5075 0.5076 0.5075 0.5076 0.5075 0.5075 0.5074 0.5074 0.5075 0.5076 0.5075 0.5076 0.5075 0.5076 0.5075 0.5075 0.5075 26 0.5077 0.5076 0.5076 0.5074 27 0.5075 0.5075 0.5074 0.5076 28 0.5077 0.5076 0.5075 0.5075 29 0.5075 0.5075 0.50M 0.5075 23 0.5076 24 0.5075 0.5075 0.5076 0.5076 25 0.5075 0.5075 30 0.5076 0.5075 0.5075 0.5076 0.5075 2985288 0.5076 0.5075 0.5076 0.5074 0.5076 0.5074 0.5076 0.5075 0.5076 0.5075 0.5075 0.5075 0.5075 5 Mean 0.5077 0.5075 0.507/58 0.5075 0.50758 0.5076 0.50752 0.5073 0.50748 0.5073 0.5076 0.50748 0.5075 0.50754 0.5075 0.50756 0.50752 0.50752 0.5075 0.50756 0.5075 0.50752 0.5075 0.50756 0.5074 0.5075 0.50752 0.50746 05075 05074 0.50754 0.50756 0.507-52 0.50748 0.50754 0.50756 0.5075 0.50754 0.5074 0.50748 0.5075 0.50756 0.5075 015075 0.5076 0.5075 0.50758 0.50748 0.50754 10 0.00002 0.50763 025074 0.0002 0.50763 025074 0.0001 0.50763 05074 0.XX13 0.50763 05074 0.0XX3 0.50763 025074 0.0001 0.50763 05074 0.0001 0.50763 05074 0.0002 0.50763 05074 0.0002 0.50763 05074 0.0002 0.50763 05074 0.0001 0.50763 0.5074 0.0002 0.50763 05074 0.0003 0.50763 025074 0.50763 05074 0.0002 0.0XX3 0.50763 025074 0.0XX02 0.50763 05074 0.XX3 0.50763 05074 0.00001 0.50763 05074 0.0001 0.50763 05074 0.0003 0.50763 05074 1E-04 0.50763 05074 0.0002 0.50763 05074 0.0001 0.50763 05074 0.0001 0.50763 05074 1E-04 0.50763 05074 0.0XX3 0.50763 05074 0.XX12 0.50763 05074 Range Ua 0.XX02 0.50763 05074 1E-04 0.50763 05074 0.0001 0.50763 05074 0.50765 0.5076 0.50755 0.5075 0.50745 0.5074 0.50735 www 0 5 10 15 20 25 30 35 Mean UQ. LOL

Answer rating: 100% (QA)

quiz a The following picture is the frequency distribution table drawn using excel software The foll... View the full answer