ture [1984): 119–129). Use the KW test and a .01 significance level to test the null hypothesis of no differ- ence in true mean phosphorus concentration for the four soil treatments.

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16.21 • The given data on phosphorus concentration in
topsoil for four different soil treatments appeared in the
article "Fertilisers for Lotus and Clover Establishments
on a Sequence of Acid Soils on the East Otago Up-
lands" (New Zealand Journal of Experimental Agricul-
ture [1984): 119-129). Use the KW test and a .01
significance level to test the null hypothesis of no differ-
ence in true mean phosphorus concentration for the four
soil treatments.
Transcribed Image Text:16.21 • The given data on phosphorus concentration in topsoil for four different soil treatments appeared in the article "Fertilisers for Lotus and Clover Establishments on a Sequence of Acid Soils on the East Otago Up- lands" (New Zealand Journal of Experimental Agricul- ture [1984): 119-129). Use the KW test and a .01 significance level to test the null hypothesis of no differ- ence in true mean phosphorus concentration for the four soil treatments.
Treatment
Concentration (mg/g)
8.1
5.9
7.0
8.0
9.0
II
11.5
10.9
12.1
10.3
11.9
II
15.3
17.4
16.4
15.8
16.0
IV
23.0
33.0
28.4
24.6
27.7
Transcribed Image Text:Treatment Concentration (mg/g) 8.1 5.9 7.0 8.0 9.0 II 11.5 10.9 12.1 10.3 11.9 II 15.3 17.4 16.4 15.8 16.0 IV 23.0 33.0 28.4 24.6 27.7
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