Question: In Exercise 8.2-10, growth data are given for plants in normal air and for plants in CO2-enriched air. Those data are repeated here: In this

In Exercise 8.2-10, growth data are given for plants in normal air and for plants in CO2-enriched air. Those data are repeated here:

In this exercise, we shall test the null hypothesis that the medians are equal, namely, H0: mX = mY, against the alternative hypothesis H1: mX (a) What is your conclusion from the Wilcoxon test?
(b) What was your conclusion from the t test in Exercise 8.2-10?
(c) Write a comparison of these two tests.

Normal Air (x) 4.67 4.21 2.18 3.91 4.09 5.24 2.94 4.71 4.04 5.79 3.80 4.38 Enriched Air (y) 5.04 4.52 6.18 7.01 4.36 1.81 6.22 5.70

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a Using the Wilcoxon statistic the sum of the ranks for the normal air is 102 Since Z... View full answer

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