Plant growth is greater with the additive. Mean without add. Mean with add. Mean without add. The research hypothesis is proved true with an alpha of 0.05.
Plant growth is greater with the additive than without the additive.
Reject Ho of no difference between means. The mean of the plant growth with additive is equal to the mean of the plant growth with no additive. The mean of the plant growth with additive is not equal to the mean of the plant growth without additive. There is no evidence to suggest the plant growth with additive and the plant growth without additive are different. The special fertilizer does not improve plant growth.