Q1) Experiment was performed to improve yield of chemical process. 4 factors were selected, and 2 replicates of completely randomized experiment were run. Results are shown in following table:
|
Treatment
|
Replicate
|
Replicate
|
Treatment
|
Replicate
|
Replicate
|
|
Combination
|
I
|
II
|
Combination
|
I
|
II
|
|
(1)
|
90
|
93
|
d
|
98
|
95
|
|
a
|
74
|
78
|
ad
|
72
|
76
|
|
b
|
81
|
85
|
bd
|
87
|
83
|
|
ab
|
83
|
80
|
abd
|
85
|
86
|
|
c
|
77
|
78
|
cd
|
99
|
90
|
|
ac
|
81
|
80
|
acd
|
79
|
75
|
|
bc
|
88
|
82
|
bcd
|
87
|
84
|
|
abc
|
73
|
70
|
abcd
|
80
|
80
|
a) Evaluate the factor effects.
b) Find out which factors are significant in explaining yield.