Statistical Literacy

Author(s)

David Lane

Surgery for Weight Loss

Prerequisites

Single Mean

Research on the effectiveness of surgery for weight loss reported here found that "The surgery was associated with significantly greater weight loss [than the control group who dieted] through 2 years (61.3 versus 11.2 pounds, P<0.001)."

What test could have been used and how would it have been computed?

What do you think?

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