A farmer is concerned that a change in fertilizer to an organic variant might change his crop yield. He subdivides his six lots and uses the old fertilizer on one half of each lot and the new fertilizer on the other half. The following table shows the results. 
Which of the following are the appropriate competing hypotheses?
Definitions:
Experiments
Methodical trials or tests carried out under controlled conditions to investigate hypotheses, observe effects, and establish causation in scientific studies.
Statistically Significant
A measure indicating that the likelihood of an observed effect occurring by chance is low, often used in research to validate findings.
Experimental Method
A research method that tests hypotheses and establishes causality by using control and experimental groups and manipulating independent variables.
Representative Sample
A subset of a population that accurately reflects the members of the entire population.
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