Question: There are 2 questions to be addressed: 1. How does the density of seeds grown together affect the germination speed, vegetative growth rate, and survival

There are 2 questions to be addressed:

1. How does the density of seeds grown together affect the germination speed, vegetative growth rate, and survival rate of [radish, sunflower, or fenugreek] plants through intraspecific competition?

2. How does the species identity of seeds grown together and allelopathy affect the germination speed, vegetative growth rate, and survival rate of [two chosen plant species] through interspecific competition?

Hypotheses:

Intraspecific -

Null: The density of seeds per growth pellet will not have any impact on the average plant germination speed, average plant vegetative growth rate, and percentage of survival in a single plant species.

Alternative: The density of seeds per growth pellet will have an impact on the average plant germination speed, average plant vegetative growth rate, and percentage of survival in a single plant species.

Interspecific -

Null: The species identity of seeds grown together in the same growth pellet will not have any impact on the average plant germination speed, average plant vegetative growth rate, and percentage of survival in any two plant species.

Alternative: The species identity of seeds grown together in the same growth pellet will have an impact on the average plant germination speed, average plant vegetative growth rate, and percentage of survival in any two plant species.

interspecific: final mean height of plants

Group number Pellet 1_Species 1 Pellet 1_Species 2 Pellet 2_Species 1 Pellet 2_Species 2 Pellet 3_Species 1 Pellet 3_Species 2 Pellet 4_Species 1 Pellet 4_Species 2 Pellet 5_Species 1 Pellet 5_Species 2 Pellet 6_Species 1 Pellet 6_Species 2
4 0 0 7.15 cm 3.5 cm 3.5 cm 11.25 cm 0 6.2 cm 1.9 cm 1.3 cm 0 6.8cm
5 2.3 0 0 3.5 0 1.79 2.24 2.29 0 0.52 1.7 1.58
6 0 100 mm 0 61 mm 0 18 mm 87 mm 87 mm 71 mm 45 mm 72 mm 40.5 mm

interspecific percentage of surviving seeds

Group number Pellet 1_Species 1 Pellet 1_Species 2 Pellet 2_Species 1 Pellet 2_Species 2 Pellet 3_Species 1 Pellet 3_Species 2 Pellet 4_Species 1 Pellet 4_Species 2 Pellet 5_Species 1 Pellet 5_Species 2 Pellet 6_Species 1 Pellet 6_Species 2
4 0% 0% 100% 100% 100% 100% 50% 100% 100% 100% 0% 100%
5 100% 0% 0% 100% 0% 50% 50% 100% 0% 33.30% 66.70% 33.30%
6 0% 100% 0% 100% 0% 50% 50% 50% 33% 33% 33% 66%

interspecific mean number of days to germinate

Group number Pellet 1_Species 1 Pellet 1_Species 2 Pellet 2_Species 1 Pellet 2_Species 2 Pellet 3_Species 1 Pellet 3_Species 2 Pellet 4_Species 1 Pellet 4_Species 2 Pellet 5_Species 1 Pellet 5_Species 2 Pellet 6_Species 1 Pellet 6_Species 2
4 0 0 4 11 2 4.5 2 2 1.3 3 0 5.3
5 4 0 0 4 0 2 2 10.5 0 4.667 6 4.33
6 0 4 0 2 0 8 2 3 2 6.5 3 6

intraspecific: final mean height of plants

Group number Pellet 1 Pellet 2 Pellet 3 Pellet 4 Pellet 5 Pellet 6
1 0mm 0mm 0mm 0mm 0mm 2.5mm
2 0mm 0mm 0mm 6mm 0mm 3.5mm
3 0mm 1.15 mm 2.8 mm 0mm 6mm 1.2 mm

intraspecific mean number of days to germinate

Group number Pellet 1 Pellet 2 Pellet 3 Pellet 4 Pellet 5 Pellet 6
1 0 0 0 0 0 10
2 0 0 0 1 0 3
3 0 7 2 0 1 6

intraspecific percentage of surviving seeds

Group number Pellet 1 Pellet 2 Pellet 3 Pellet 4 Pellet 5 Pellet 6
1 0% 0% 0% 0% 0% 0%
2 0% 0% 0% 25% 0% 16.70%
3 0% 50% 0% 0% 16.70% 16.70%

T-test tutorial: https://www.youtube.com/watch?v=qvPWQ-e03tQ

using the questions along with the hypotheses written above, please do t-test and explain what the results mean in terms of the null and alternative hypotheses. I really need the T-TEST values please because I'm very confused!! Thank you!

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