Question

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the hypothesis states, \if 180 mg of lw20 is given to male subjects over three weeks, then their kidney function will increase by at least 20%.\
select the statement that accurately describes an appropriate conclusion to the experiment based on the data provided.
the results support the hypothesis because kidney function increased with each subject.
the results failed to support the hypothesis because kidney function remained the same.
the results support the hypothesis because kidney function decreased.
the results failed to support the hypothesis because the kidney function did not increase by 20%.

Explanation:

The hypothesis requires kidney function to increase by at least 20%. If the data shows it didn't reach this 20% increase, the hypothesis isn't supported. Other options have inconsistent reasoning (e.g., A: increase alone doesn't confirm 20% rise; B: function same contradicts "increased with each"; C: decrease opposes hypothesis).

Answer:

D. The results failed to support the hypothesis because the kidney function did not increase by 20%.