Specific Experimental Questions:

1) How does intraspecific competition (density of seeds grown together) affect plant germination speed, vegetative growth rate, and survival chance in [choose radish, sunflower, or fenugreek]?

2) How does interspecific and/or allelopathy (species identity of seeds grown together) affect plant germination speed, vegetative growth, and survival chance in [2 chosen plant species]?

Hypotheses:

intraspecific-

1)null- Density of seeds per growth pellet will have no effect on mean plant germination speed, no effect on mean plant vegetative growth rate, and no effect on percentage chance of survival in [single plant species].

1)alternative- Density of seeds per growth pellet will have an effect on mean plant germination speed, will have an effect on mean plant vegetative growth rate, and will have an effect on percentage chance of survival in [single plant species].

interspecific-

2)null- Species identity of seeds growing together in the same growth pellet will have no effect on mean plant germination speed, no effect on mean plant vegetative growth rate, and no effect on percentage chance of survival in [any two plant species].

2)alternative- Species identity of seeds growing together in the same growth pellet will have an effect on mean plant germination speed, will have an effect on mean plant vegetative growth rate, and will have an effect on percentage chance 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

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

please do t-test and explain what the results mean in terms of the null and alternative hypotheses