【正文】 The National Graduate School of Quality Management ? 129 Bowling Example (continued) ?Now lets look at the interactions.... ?Go to ?DOE…. ?Factorial… ?Factorial Plots… 169。The National Graduate School of Quality Management ? 121 Bowling Example (continued) Highlight your Data column and use Select to place it in the Responses box. Then, select the Terms Option. 169。The National Graduate School of Quality Management ? 113 First Create an Experimental Design... Go to ?Stat… ?DOE… ?Factorial... ?Create Factorial Design... 169。The National Graduate School of Quality Management ? 105 Set up the analysis…. ?Select Stat… ?ANOVA… ?One way… 169。The National Graduate School of Quality Management ? 97 Paired Comparison We see how the 95% confidence interval of the mean relates to the value we are testing. In this case, the value falls outside the 95% confidence interval of the data mean. This gives us confirmation that the shoe materials are significantly different. 169。The National Graduate School of Quality Management ? 89 Setting up the test…. ?We see that we have two options for our graphical output. For this small a sample, Boxplots will not be of much value so we select “Dotplots of data” and hit “OK”. Hit OK again on the next screen…. 169。The National Graduate School of Quality Management ? 81 Analyzing the Results ?Since the P value is greater than .05 we can assume the “Before” data is normal ?Now repeat the test for the “After” Data (this is left to the student as a learning exercise..) 169。The National Graduate School of Quality Management ? 73 Let’s do a process capability study…. Open Minitab and load the file …. 169。The National Graduate School of Quality Management ? 65 Scatter plot.... We now have two Scatter plots of the data stacked on top of each other… We can display this better by tiling the graphs…. 169。The National Graduate School of Quality Management ? 57 Boxplot.... ?Select Boxplot of data…. ?Select OK….. ?Select OK again on the next screen... 169。The National Graduate School of Quality Management ? 49 Histogram.... Note that now we not only have our Histogram but a number of other descriptive statistics as well…. This is a great summary slide... As for the normality question, note that our P value of .038 rejects the null hypothesis (P.05). So, we conclude with 95% confidence that the data is not normal….. 169。The National Graduate School of Quality Management ? 41 Pareto Chart.... Minitab now pletes our pareto for us ready to be copied and pasted into your PowerPoint presentation…. 169。The National Graduate School of Quality Management ? 33 Transferring the Analysis... ?Now we can copy the analysis from the Session window….. ?Highlight the text you want to copy…. ?Select Edit….. Copy….. 169。The National Graduate School of Quality Management ? 25 Use Minitab to do the Analysis... Lets say that we would like to test correlation between the Predicted Workload and the actual workload…. ?Select Stat… Regression…. Fitted Line Plot….. 169。The National Graduate School of Quality Management ? 17 Menu Bar Help Menu Key Functions ?Help and Tutorials ?Subject Searches ?Statguide ?Multiple Tutorials ?Minitab on the Web 169。The National Graduate School of Quality Management ? 9 Menu Bar Manip Menu Key Functions ?Data Manipulation ?Subset/Split ?Sort ?Rank ?Row Data Manipulation ?Column Data Manipulation 169。The National Graduate School of Quality Management ? 1 INTRODUCTION TO MINITAB VERSION 13 169。The National Graduate School of Quality Management ? 6 Menu Bar Menu Conventions Hot Key Available (CtrlS) Submenu Available (… at the end of selection) 169。The National Graduate School of Quality Management ? 14 Menu Bar Session Window Editor Menu Key Functions ?Advanced Edit and Display Options ?Font ?Connectivity Settings 169。The National Graduate School of Quality Management ? 22 Starting with Excel... Highlight and Copy the Data…. 169。The National Graduate School of Quality Management ? 30 Transferring the Analysis... ?Open PowerPoint and select a blank slide…. ?Go to Edit…. Paste Special... 169。The National Graduate School of Quality Management ? 38 Pareto Chart.... ?Let’s generate a Pareto Chart from a set of data…. ?Go to File… Open Project…. Load the file …. ?Now let’s generate the Pareto Chart... 169。The National Graduate School of Quality Management ? 46 Histogram.... ?Go to: ?Stat… ?Basic Statistics… ?Display Descriptive Statistics…. 169。The National Graduate School of Quality Management ? 54 Boxplot.... ?Let’s look at the same data using a Boxplot…. 169。The National Graduate School of Quality Management ? 62 Scatter plot.... ?Let’s look at data using a Scatterplot…. ?Go to File… Open Project…. Load the file …. ?Now let’s generate the Scatterplot of the GPA results against our Math and Verbal scores... 169。The National Graduate School of Quality Management ? 70 Scatter plot.... We now have a series of Scatter plots, each one corresponding to a bination of the data sets available… Note that there appears to be a strong correlation between Verbal and both Math and GPA data…. 169。The National Graduate School of Quality Management ? 78 ?Load the file ….. Setting up the test in Minitab 169。The National Graduate School of Quality Management ? 86 ?Here, we see the 95% confidence intervals for the two populations. Since they overlap, we know that we will fail to reject the null hypothesis. ?The F test results are