Table 4 The multiple-regression analysis of the Plackett–Burman design in estimated effect.

From: Investigation of impact of siderophore and process variables on production of iron enriched Saccharomyces boulardii by Plackett–Burman design

 

Biomass weight (R1)

Organic iron (R2)

Coefficient estimate

Main effect

Contribution%

t -Stat |effect|

Coefficient estimate

Main effect

Contribution%

T-Stat |effect|

Intercept

3.60

     

54

 

A

1.11

2.22

12.86

7.79

11.10

22.19

3.64

9.07

B

1.42

2.84

20.97

9.95

16.85

33.69

8.4

13.78

C

0.1042

0.2

0.11

0.72

1.13

2.25

0.03

0.92

D

− 0.3792

− 0.75

1.49

2.65

− 6.86

− 13.72

1.39

5.61

E

− 0.1875

− 0.37

0.36

1.31

− 2.78

− 5.55

0.22

2.27

F

0.0625

0.12

0.04

0.43

1.93

3.85

0.11

1.57

G

2.10

4.2

46

14.74

48.88

97.76

70.79

39.99

H

− 0.2458

− 0.49

0.62

1.72

− 7.64

− 15.27

1.72

6.24

J

0.4708

0.94

2.3

3.29

11.61

23.22

3.99

9.5

K

− 0.6458

− 1.29

4.33

4.52

− 8.14

− 16.28

1.96

6.66

L

− 0.8958

− 1.79

8.33

6.27

− 15.54

− 31.08

7.15

12.71

Back to article page