Learn basic features to get started with Minitab Engage, including how to submit project ideas and understand workflow, using a Roadmap to guide you through the forms and tools of each phase, and opening the online dashboard and understanding its components. Thus, the engineer should not use the model to make generalizations beyond the sample data. Getting Started Guide for Minitab Engage. The imprecision may be due to the small size of the groups. The low predicted R 2 (24.32%) value indicates that the model generates imprecise predictions for new observations. The confidence intervals for the remaining pairs of means all include zero, which indicates that the differences are not significant. The engineer can use this estimate of the difference to determine whether the difference is practically significant. This range does not include zero, which indicates that the difference between these means is significant. The graph that includes the Tukey simultaneous confidence intervals show that the confidence interval for the difference between the means of Blend 2 and 4 is 3.114 to 15.886. The engineer uses the Tukey comparison results to formally test whether the difference between a pair of groups is statistically significant. ![]() The engineer knows that some of the group means are different. This result indicates that the hardness of the paint blends differs significantly. ![]() The p-value for the paint hardness ANOVA is less than 0.05.
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