BUAL 2650 GRAMLING FINAL QUESTIONS WITH CORRECT ANSWERS

Low SE=


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more accurate/PRECISE model




p-value less than or equal to alpha


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reject the null




Best fit model, R^2 must be...

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R^2 > 0.5




sample proportion (p-hat)


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= # of occurrences/ total occurrences




A bigger R^2=


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model is a better fit




small p-value


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reject Ho




machine learning (UNSUPERVISED)


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, Association: Market Basket Analysis
Clustering
Data Extraction




df for two means


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= (n1+n2) - 2




(P<X) Left tail test


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use the Z-score on table to find the P-Value




Unsupervised Machine Learning


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machine learning that does not need input for the algorithms and does not
need to be trained
(Unlabeled)




Null and Alt. for One Mean