Guide to Using Minitab 14 For Basic Statistical
Guide to Using Minitab 14 For Basic Statistical Applications To Accompany Business Statistics: A Decision Making Approach, 8 th Ed. Chapter 17: Introduction to Nonparametric Statistics By Groebner, Shannon, Fry, & Smith Prentice-Hall Publishing Company Copyright, 2011
Chapter 17 Minitab Examples n n Mann-Whitney Large Sample Test Future-Vision Kruskal-Wallis Test Amalgamated Sugar
Mann-Whitney Large Sample Test - Future-Vision Issue: The managers for a local Network television affiliate are preparing for a national television advertising conference. The managers believe that the median household income for cable subscribers is less than the median for those who do not subscribe. Objective: Use Minitab to determine if the median household income for cable subscribers is less than those who do not subscribe to cable. Data file is Future-Vision-Ranks. MTW
Mann-Whitney Large Sample Test – Future-Vision Open file Future-Vision-Ranks. MTW
Mann-Whitney Large Sample Test – Future-Vision Select Stat – then Nonparametrics – then Mann. Whitney
Mann-Whitney Large Sample Test – Future-Vision Specify First and Second Sample Columns and use “Great than” for the alternative hypothesis.
Mann-Whitney Large Sample Test – Future-Vision Minitab Results
Kruskal-Wallis Test Amalgamated Sugar Issue: The company is interested in determining whethere is a difference in down-time between its three operational shifts. Objective: Use Minitab to determine whether the relationship between the two measures is statistically significant. Data file is Amalgamated. MTW
Kruskal-Wallis Test – Amalgamated Sugar Open File Amalgamated. MTW
Kruskal-Wallis Test – Amalgamated Sugar The data will have to be reorganized, Click on Data, then Stack and finally Columns.
Kruskal-Wallis Test – Amalgamated Sugar Define columns to be stacked into the new column and the column containing the group identifier.
Kruskal-Wallis Test – Amalgamated Sugar The data is now arranged as needed to be analyzed.
Kruskal-Wallis Test – Amalgamated Sugar Click on Stat, then Nonparametrics and finally Kruskal-Wallis.
Kruskal-Wallis Test – Amalgamated Sugar Identify the column containing the data and the group identifier.
Kruskal-Wallis Test – Amalgamated Sugar The output gives the H Test Statistic and the p-value.
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