Commercial apple trees usually consist of two parts grafted together. The upper part, or graft, determines the character of the fruit, while the root stock determines the size of the tree.† The following data are from two root stocks, A and B. The data represent total extension growth (in meters) of the grafts after 4 years.Stock A2.522.262.862.912.782.581.962.103.412.942.88Stock B2.813.021.942.373.112.712.742.442.131.582.77Use a 1% level of significance and the rank-sum test to test the claim that the distributions of growths are different for root stocks A and B. Interpret the results.What is the level of significance?Compute the sample test statistic. (Round your answer to two decimal places.)Find the P-value of the sample test statistic. (Round your answer to four decimal places.)

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Commercial apple trees usually consist of two parts grafted together. The upper part, or graft, determines the character of the fruit, while the root stock determines the size of the tree.† The following data are from two root stocks, A and B. The data represent total extension growth (in meters) of the grafts after 4 years.

Stock A	2.52	2.26	2.86	2.91	2.78	2.58	1.96	2.10	3.41	2.94	2.88
Stock B	2.81	3.02	1.94	2.37	3.11	2.71	2.74	2.44	2.13	1.58	2.77

Use a 1% level of significance and the rank-sum test to test the claim that the distributions of growths are different for root stocks A and B. Interpret the results.

What is the level of significance?

Compute the sample test statistic. (Round your answer to two decimal places.)

Find the P-value of the sample test statistic. (Round your answer to four decimal places.)

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