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An introduction to SigmaXL's various Graphical tools …

An introduction to SigmaXL's various Graphical tools

Established in 1998, SigmaXL Inc. is a leading provider of user friendly Excel Add-ins for Lean Six Sigma graphical and statistical tools and Monte Carlo simulation.

SigmaXL® customers include market leaders like Agilent, Diebold, FedEx, Microsoft, Motorola and Shell. SigmaXL® software is also used by numerous colleges, universities and government agencies.

Our flagship product, SigmaXL®, was designed from the ground up to be a cost-effective, powerful, but easy to use tool that enables users to measure, analyze, improve and control their service, transactional, and manufacturing processes. As an add-in to the already familiar Microsoft Excel, SigmaXL® is ideal for Lean Six Sigma training and application, or use in a college statistics course. 

DiscoverSim™ enables you to quantify your risk through Monte Carlo simulation and minimize your risk with global optimization. Business decisions are often based on assumptions with a single point value estimate or an average, resulting in unexpected outcomes.

DiscoverSim™ allows you to model the uncertainty in your inputs so that you know what to expect in your outputs.

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  • 1. Graphical Tools SigmaXL® Version 6.1 Basic and Advanced (Multiple) Pareto Charts EZ-Pivot/Pivot Charts Multiple Boxplots and Dotplots Multiple Normal Probability Plots (with 95% confidence intervals to ease interpretation of normality/non-normality) Run Charts (with Nonparametric Runs Test allowing you to test for Clustering, Mixtures, Lack of Randomness, Trends and Oscillation.) Multi-Vari Charts Basic Histogram Multiple Histograms and Descriptive Statistics (includes Confidence Interval for Mean and StDev., as well as Anderson-Darling Normality Test) Multiple Histograms and Process Capability (Pp, Ppk, Cpm, ppm, %) Scatter Plots (with linear regression and optional 95% confidence intervals and prediction intervals) Scatter Plot Matrix
  • 2. Graphical Tools: Multiple Pareto Charts 2 Customer Type - Customer Type: # 1 - Size of Customer: Large 6 4 2 Ordertakestoo-long Notavailable Wrongcolor Difficultto-order Returncalls 0 Customer Type - Customer Type: # 1 - Size of Customer: Small Ordertakestoo-long 10 8 6 4 2 0 Ordertakestoo-long 8 12 Notavailable 10 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 14 Count 12 Count Customer Type - Customer Type: # 2 - Size of Customer: Large 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 14 Notavailable 0 Ordertakestoo-long Notavailable Wrongcolor Difficultto-order Returncalls 0 4 Wrongcolor 2 6 Wrongcolor 4 8 Difficultto-order 6 10 Difficultto-order 8 12 Returncalls Count 10 Returncalls 12 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 14 Count 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 14 Customer Type - Customer Type: # 2 - Size of Customer: Small Back to Index
  • 3. Graphical Tools: EZ-Pivot/Pivot Charts – The power of Excel’s Pivot Table and Charts are now easy to use! Size of Customer (All) 70 Count of Major-Complaint 60 50 40 Customer Type 3 2 1 30 20 10 0 Difficult-to-order Not-available Order-takes-too-long Return-calls Wrong-color Major-Complaint Back to Index
  • 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 9 109 0 Run Chart - Avg days Order to delivery time Graphical Tools: Run Charts with Nonparametric Runs Test 67.40 62.40 57.40 52.40 Median: 49.00 47.40 42.40 37.40 32.40 Back to Index
  • 5. Basic Histogram Count = 100 Mean = 3.530 Stdev = 0.904031 Minimum = 1 45 25th Percentile (Q1) = 3 50th Percentile (Median) = 4 40 95% CI Mean = 3.351 to 3.709 95% CI Sigma = 0.793746 to 1.050191 35 Anderson-Darling Normality Test: A-Squared = 5.417 25 20 15 10 5 6.00 Loyalty - Likely to Recommend 5.00 4.00 3.00 2.00 0 1.00 Frequency 30 Back to Index
  • 6. Graphical Tools: Multiple Histograms & Descriptive Statistics 12 Overall Satisfaction - Customer Type: 1 10 Count = 31 Mean = 3.3935 Stdev = 0.824680 Range = 3.1 8 6 Minimum = 1.7200 25th Percentile (Q1) = 2.8100 50th Percentile (Median) = 3.5600 75th Percentile (Q3) = 4.0200 Maximum = 4.8 4 2 4.98 4.71 4.44 4.17 3.90 3.62 3.35 3.08 2.81 2.54 2.26 1.99 1.72 0 Overall Satisfaction - Customer Type: 1 95% CI Mean = 3.09 to 3.7 95% CI Sigma = 0.659012 to 1.102328 Anderson-Darling Normality Test: A-Squared = 0.312776; P-value = 0.5306 12 Overall Satisfaction - Customer Type: 2 10 Count = 42 Mean = 4.2052 Stdev = 0.621200 Range = 2.6 8 6 Minimum = 2.4200 25th Percentile (Q1) = 3.8275 50th Percentile (Median) = 4.3400 75th Percentile (Q3) = 4.7250 Maximum = 4.98 4 2 Overall Satisfaction - Customer Type: 2 4.98 4.71 4.44 4.17 3.90 3.62 3.35 3.08 2.81 2.54 2.26 1.99 1.72 0 95% CI Mean = 4.01 to 4.4 95% CI Sigma = 0.511126 to 0.792132 Anderson-Darling Normality Test: A-Squared = 0.826259; P-value = 0.0302 Back to Index
  • 7. Graphical Tools: Multiple Histograms & Process Capability Histogram and Process Capability Report Room Service Delivery Time: Before Improvement (Baseline) LSL = -10 Target = 0 USL = 10 160 140 120 Count = 725 Mean = 6.0036 Stdev (Overall) = 7.1616 USL = 10; Target = 0; LSL = -10 Capability Indices using Overall Standard Deviation Pp = 0.47 Ppu = 0.19; Ppl = 0.74 Ppk = 0.19 Cpm = 0.36 Sigma Level = 2.02 Expected Overall Performance ppm > USL = 288409.3 ppm < LSL = 12720.5 ppm Total = 301129.8 % > USL = 28.84% % < LSL = 1.27% % Total = 30.11% 100 80 60 Actual (Empirical) Performance % > USL = 26.90% % < LSL = 1.38% % Total = 28.28% 40 20 0 Delivery Time Deviation Histogram and Process Capability Report Room Service Delivery Time: After Improvement LSL = -10 Target = 0 USL = 10 Anderson-Darling Normality Test A-Squared = 0.708616; P-value = 0.0641 Count = 725 Mean = 0.09732 Stdev (Overall) = 2.3856 USL = 10; Target = 0; LSL = -10 Capability Indices using Overall Standard Deviation Pp = 1.40 Ppu = 1.38; Ppl = 1.41 Ppk = 1.38 Cpm = 1.40 Sigma Level = 5.53 160 140 120 Expected Overall Performance ppm > USL = 16.5 ppm < LSL = 11.5 ppm Total = 28.1 % > USL = 0.00% % < LSL = 0.00% % Total = 0.00% 100 80 60 40 Actual (Empirical) Performance % > USL = 0.00% % < LSL = 0.00% % Total = 0.00% 20 0 Delivery Time Deviation Anderson-Darling Normality Test A-Squared = 0.189932; P-value = 0.8991 Back to Index
  • 8. Graphical Tools: Multiple Boxplots 5 Overall Satisfaction Overall Satisfaction 5 4 3 2 1 4 3 2 1 1 2 Customer Type - Size of Customer: Large 3 1 2 3 Customer Type - Size of Customer: Small Back to Index
  • 9. Graphical Tools: Multiple Normal Probability Plots 2 1 1 NSCORE 3 2 NSCORE 3 0 0 -1 -1 -2 -2 -3 -3 1 2 3 4 Overall Satisfaction - Customer Type: 1 5 6 2.1 2.6 3.1 3.6 4.1 4.6 5.1 5.6 6.1 Overall Satisfaction - Customer Type: 2 Back to Index
  • 10. Overall Satisfaction (Mean Options) Graphical Tools: Multi-Vari Charts 4.634 4.634 4.634 4.634 4.134 4.134 4.134 4.134 3.634 3.634 3.634 3.634 3.134 3.134 3.134 3.134 2.634 2.634 2.634 2.634 2.134 2.134 2.134 2.134 1.634 1.634 #1 #2 #3 Standard Deviation Customer Type - Size of Customer: Large - Product Type: Consumer 1.634 #1 #2 #3 Customer Type - Size of Customer: Small Product Type: Consumer 1.634 #1 #2 #3 Customer Type - Size of Customer: Large Product Type: Manufacturer #1 #2 #3 Customer Type - Size of Customer: Small Product Type: Manufacturer 1.00 1.00 1.00 1.00 0.80 0.80 0.80 0.80 0.60 0.60 0.60 0.60 0.40 0.40 0.40 0.40 0.20 0.20 0.20 0.20 0.00 0.00 0.00 #1 #2 #3 Customer Type - Size of Customer: Large - Product Type: Consumer #1 #2 #3 Customer Type - Size of Customer: Small Product Type: Consumer 0.00 #1 #2 #3 Customer Type - Size of Customer: Large Product Type: Manufacturer #1 #2 #3 Customer Type - Size of Customer: Small Product Type: Manufacturer Back to Index
  • 11. Graphical Tools: Multiple Scatterplots with Linear Regression 5.1 4.6 y = 0.5238x + 1.6066 R2 = 0.6864 5.1 y = 0.5639x + 1.822 R2 = 0.6994 4.6 Overall Satisfaction Overall Satisfaction 4.1 3.6 3.1 2.6 4.1 3.6 3.1 2.1 2.6 1.6 1.1 1.01 1.51 2.01 2.51 3.01 3.51 Responsive to Calls - Customer Type: 1 4.01 4.51 2.1 1.88 2.38 2.88 3.38 3.88 4.38 4.88 Responsive to Calls - Customer Type: 2 Linear Regression with 95% Confidence Interval and Prediction Interval Back to Index
  • 12. y = 0.567x + 1.6103 R2 = 0.6827 3.7200 2.7200 1.7200 1.0000 2.0000 3.0000 4.0000 3.7200 2.7200 1.7200 1.4000 5.0000 Responsive to Calls y = 1.2041x - 0.7127 R2 = 0.6827 2.0000 1.0000 1.7200 2.2200 2.7200 3.2200 3.7200 4.2200 4.7200 3.0000 2.0000 1.4000 1.7200 2.2200 2.7200 3.2200 3.7200 4.2200 4.7200 2.0000 3.0000 4.0000 5.0000 0.9600 1.7200 2.2200 2.7200 3.2200 3.7200 4.2200 4.7200 Overall Satisfaction 3.9600 y = 0.0799x + 2.9889 R2 = 0.0071 2.9600 1.9600 0.9600 1.0000 4.9600 y = 0.0893x + 3.57 R2 = 0.0071 3.0000 2.0000 1.9600 2.9600 3.9600 4.9600 Staff Knowledge 4.4000 y = 0.0428x + 3.6071 R2 = 0.0026 3.4000 2.4000 1.4000 0.9600 1.9600 2.9600 3.9600 4.9600 4.9600 2.0000 3.0000 4.0000 Responsive to Calls 5.0000 Staff Knowledge 1.9600 3.9600 Staff Knowledge 4.9600 Staff Knowledge Staff Knowledge 2.9600 y = 0.303x + 2.5773 R2 = 0.1437 2.4000 1.4000 1.0000 2.9600 4.0000 1.0000 0.9600 4.4000 Responsive to Calls 4.9600 y = 0.1055x + 2.8965 R2 = 0.0059 3.4000 3.4000 Overall Satisfaction 3.9600 2.4000 Ease of Communications 2.4000 4.4000 1.9600 Staff Knowledge Ease of Communications Ease of Communications Ease of Communications Overall Satisfaction 3.4000 2.7200 5.0000 y = 0.4743x + 2.0867 R2 = 0.1437 4.0000 1.0000 1.4000 y = 0.0555x + 3.6181 R2 = 0.0059 3.7200 1.7200 0.9600 4.4000 Responsive to Calls 3.0000 y = 0.8682x + 0.4478 R2 = 0.5556 3.4000 5.0000 4.0000 4.4000 2.4000 4.7200 Ease of Communications Responsive to Calls Responsive to Calls 5.0000 y = 0.64x + 1.4026 R2 = 0.5556 4.7200 Overall Satisfaction 4.7200 Overall Satisfaction Overall Satisfaction Graphical Tools: Scatterplot Matrix 3.9600 y = 0.0599x + 3.0732 R2 = 0.0026 2.9600 1.9600 0.9600 1.4000 2.4000 3.4000 4.4000 Ease of Communications Back to Index