IBPS Clerk Mains 2019 Paper

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Question : 39 of 190
 
Marks: +1, -0
Before the arrival of Joe, a new partner, sales output in Bill’s company, Midas in Revere Ltd., had been rising by10% per year on average. Innovations by Joe included computerization of technical processes and reductions in the work force, but annual sales output has only risen by5% per year. It appears that Joe’s innovations have caused the reduction in the annual growth rate.
Which of the following, if true, would most seriously weaken the conclusions above?
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