Many companies have recently required their employees to pay an increasing percentage of the cost of health insurance premiums. On average, the companies that instituted this change reported an 11 percent increase in profits for the last fiscal year.
If, on the basis of the evidence above, it is argued that increasing the portion of health insurance costs paid directly by employees increased a company's profitability, which of the following, if true, would most seriously weaken that argument?
A:
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If, on the basis of the evidence above, it is argued that increasing the portion of health insurance costs paid directly by employees increased a company's profitability, which of the following, if true, would most seriously weaken that argument?
A:
...
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