Time Warner Cable uses its sales reports broken down by geographic regions as part of its marketing research to determine which markets are most rapidly adopting high-speed Internet connections. In this example, Time Warner Cable is using

Internal Secondary Data

Explanation:

The research uses secondary data to extract an information which is used to make decisions and this extracted information is known as primary data. The information required to make market reasearch is secondary data. Remember that the secondary data which comes from within the organization is known as internal secondary data. The secondary in this case comes from within the organization which will be used for market research and hence is Internal Secondary Data.

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