1. Analysis of Variance
wina<- aov(POD~treatment+replication, data=data_shahzad_4)
anova(wina)
## Analysis of Variance Table
## Response: POD
## Df Sum Sq Mean Sq F Value Pr(>F)
## treatment 3 864 288.00 0.4014 0.7524
## replication 2 164 82.10 0.1144 0.8920
## Residuals 90 64582 717.57
2. Multiple Comparison Test
winams<-aov(POD~treatment+replication, data=data_shahzad_4)
LSD.test(winams,"treatment", console = TRUE)
## Study: winams ~ "treatment"
## LSD t Test for POD
## Mean Square Error: 717.5726
## treatment, means and individual ( 95 %) CI
## POD std r LCL UCL Min Max
## Compost 258.4262 26.64398 24 247.5631 269.2894 227.15 292.78
## Control 259.8725 22.40901 24 249.0094 270.7356 231.29 288.78
## Hydropriming 261.4633 30.43338 24 250.6002 272.3264 214.31 299.67
## Potassium nitrate 266.3896 26.01492 24 255.5265 277.2527 236.12 292.78
## Alpha: 0.05 ; DF Error: 90
## Critical Value of t: 1.986675
## least Significant Difference: 15.36275
## Treatments with the same letter are not significantly different.
## POD groups
## Potassium nitrate 266.3896 a
## Hydropriming 261.4633 a
## Control 259.8725 a
## Compost 258.4262 a
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