Nick is working on a deal to sell 1,000 calculators in Sweden. He learns that the country has just performed a major upgrade of its healthcare system technology, which was financed by a loan from the European Union. Nick is now worried about his deal. What do you think is the cause of his concern?

0.59 ± 0.081 = (0.671, 0.509)  
Explanation: 
The sample proportion, p = 118/200 = 0.59 
The test statistic at 98% confidence interval is given by : 
p + z*Sqrt(p(1-p)/n) ; p - z*Sqrt(p(1-p)/n) 
z at 98% C.I. is 2.33 
Therefore, 0.59 + 2.33 * sqrt(0.59*(1-0.59)/200) and 0.59 + 2.33 * sqrt(0.59*
(1-0.59)/200)
 =0.59 + 0.081 and 0.59 - 0.081
 =0.671, 0.509