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发帖数: 52 | 1 阿赛门特里有一个问题，因为这些问题都是开放式的，所以应该只要justify就好了，
各位都是前辈，肯定对这方面一目了然，看了就清楚应该从哪里下手，所以希望大家能
不吝赐教，有意见帮忙回复我一下，作业后天就交了
ok,废话不多说，问题是这样的
the male animal in a captive breeding program does not want to mate with
females,
a researcher want to test if the testosterone level is related to protein
level in the diet. (higher testosterone level may be caused by lower protein
level?)
so he sets up an experiment with five treatments.
A. Control-current food type,17% protein
B.current food type,15%
C.current food type, 12%
D.another food type,15% protein
E.A food type with unknown constitution.
the research team has access to 4 house, each contains 4 cages, they decide
a 3 replicates in a completely randonmised design(1 cage not used), after 4
months, mean treatments were:
A.126ug/L
B. 113ug/L
C.165 ug/L
D. 139 ug/L
E.151 ug/L
but the F test is not significant(p=0.097)
Questions:
1. is the design appropriate to achieve the objective?
2. how would u interpret the result?
3.how would you re-design it If you were to repeat the experiment,Explain
your decision and show what the ANOVA table would look like, with the number
of degrees of freedom for each source of variation |
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