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Table 4 Student test for independent samples (P ≤ 0.05, n = 5) to compare the averages of the different treatments before and after rain simulation

From: Evaluation of a Bacillus thuringiensis isolate-based formulation against the pod borer, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)

Control periodsTreatmentsDFFt (calculated)t (tabulated)Sig. (bilateral)Average differenceStandard error differenceThe confidence interval of the the difference at 95%
InferiorSuperior
2Control---------
Water8001.86100.447− 1.0311.031
Spinosad---------
Hr1---------
Formulation---------
3Control---------
Water8001.86100.707− 1.6311.631
Spinosad---------
Hr1---------
Formulation---------
4Control---------
Water8001.86101− 2.3062.306
Spinosad---------
Hr163.2− 1.2911.9430.248− 10.775− 2.9340.934
Formulation63.2− 16.3150.357− 0.50.5− 1.7290.729
5Control---------
Water800.621.860.5530.50.806− 1.3772.377
Spinosad810.894− 6.1471.86P < 0.01*− 2.30.374− 3.163− 1.437
Hr163.16− 1.8091.9430.119− 1.20.663− 2.8130.413
Formulation70− 1.2911.8950.237− 0.50.387− 1.4110.411
6Control---------
Water70.29311.4961.895P < 0.01*6.120.5324.8727.368
Spinosad44.696− 5.7152.132P < 0.01*− 2.80.49− 4.16− 1.44
Hr180.59− 1.4291.860.192− 0.70.49− 1.8350.435
Formulation8001.86100.447− 1.0311.031
7Control---------
Water8001.86101− 2.3062.306
Spinosad44.696− 5.7152.132P < 0.01*− 2.80.49− 4.16− 1.44
Hr171.601.895100.548− 1.2881.288
Formulation8001.86100.316− 0.7290.729
8Control---------
Water70.289− 0.7881.8950.455− 0.70.889− 2.7751.375
Spinosad44.696− 5.7152.132P < 0.01*− 2.80.49− 4.16− 1.44
Hr163.2− 71.943P < 0.01*− 71− 9.459− 4.541
Formulation8001.86100.316− 0.7290.729
9Control---------
Water80− 51.86P < 0.01*− 51− 7.306− 2.694
Spinosad44.696− 5.7152.132P < 0.01*− 2.80.49− 4.16− 1.44
Hr170.275− 18.3751.895P < 0.01*− 14.70.8− 16.591− 12.809
Formulation70− 1.2911.8950.237− 0.50.387− 1.4110.411
10Control---------
Water70.526− 2.4491.895P < 0.01*− 1.80.735− 3.515− 0.085
Spinosad44.696− 5.7151.86P < 0.01*− 2.80.49− 4.16− 1.44
Hr170.275− 18.3751.895P < 0.01*− 14.70.8− 16.591− 12.809
Formulation70− 1.2911.8950.237− 0.50.387− 1.4110.411
  1. If t (calculated) > t (tabulated), then the samples means are not equal; if t (calculated) ≤ t (tabulated), then the sample means are equal.
  2. *P < 0.001 (highly significant) and P < 0.05 (significant); student test for independent samples at α = 0.05