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An experiment was conducted in which one group of plants receive extra fertilizer and another group receives extra water. The heights of the plants are
- An experiment was conducted in which one group of plants receive extra fertilizer and another group receives extra water. The heights of the plants are recorded in the table (plant.txt). Use Rank Sum Test to determine if the two groups have difference or not at a=0.05.
- Following Notes Page 7-8 to give a table of rank transformation. (3pt)
- Calculate rank sum statistic T and the mean and standard deviation of T. (6pt)
- Calculate the Z-statistic based on T. Calculate p-value or Reject Region and draw a decision. (5pt)
- Draw a conclusion to answer the question. (1pt)
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Applied Regression Analysis And Other Multivariable Methods
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
5th Edition
1285051084, 978-1285963754, 128596375X, 978-1285051086
