An experiment is proposed to determine the effect of phosphate
on rice production. Accordingly, an agronomist prepared
five compositions of phosphate. Six test specimens were made for
each composite. The yields in kg of the thirty test
specimens were determined and coded as shown below.
1
2
Composition 3
4
5
Yield
16 18 30 32 23 25
25 28 39 38 36 29
36 32 40 44 36 40
38 36 39 43 40 38
33 36 40 40 34 41
(a). State the
relevant model completely.
(b). Estimate the
mean effect of each composition.
(c). At 5% level of significance, is there any
difference in the yield of each
An experiment is proposed to determine the effect of phosphate on rice production. Accordingly, an agronomist prepared
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