An employee benefits administrator wonders if the amount of the insurance co-pay affects the number of times employees visit a doctor per year. The company offers two plans. One plan has a higher visit co-pay in return for a larger cap on annual coverage. The other plan has a lower visit co-pay but with a lower cap on annual coverage. Here are the number of visits in a given year for 14 members under each plan. Conduct a two-tailed t test at the .05 α level. Does either plan result in significantly fewer visits?

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Higher Co-Pays 1 4 1 2 3 1 0 1 0 2 4 0 Lower Co-Pays 1 3 0 5 3 4 4 3 5 دیا 2 0 2 + 1