Business, 07.05.2021 19:50 smilebehappy468

An article presents a study that investigated the effect of varying the type of fertilizer on the height of certain Mediterranean woody tree species. In one experiment, three samples, each consisting of ten trees, were grown with three different fertilizers. One, the control group, was grown with a standard fertilizer. Another was grown with a fertilizer containing only half the nutrients of the standard fertilizer. The third was grown with the standard fertilizer to which a commercial slow-release fertilizer had been added. Following are the heights of the trees after one year. Fertilizer Height Control 17.9 12.2 14.9 13.8 26.1 15.4 20.3 16.9 20.8 14.8
Deficient 8.5 8.4 14.8 12.6 12.5 18 14.2 13.9 18.6 10.5
Slow-release 19.8 20.3 16.1 17.9 12.4 12.5 17.4 19.9 27.3 14.4
a) If you want to construct a hypothesis to test for heights of the trees, state your null and alternative hypothesis.
b) Is the experiment a factorial balanced CR design?
c) What is the degree of freedom of treatment sum of square and error sum of square? If SSTrt and SSE is given: SSTrt=192.374 SSE=439.389, what is the value of your test statistics?
d) Compute the SST?

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