Recently, 18.3% of visitors to the Travelocity website hailed from the Google search engine. A random sample of 130 visitors on the Travelocity website was selected. The standard error of the proportion is _______________.

Question

Quizplus · Accepted Answer

The standard error of the proportion is calculated using the formula: SE = sqrt[p(1-p)/n], where p is the proportion (0.183 in this case), and n is the sample size (130). Plugging in the values: SE = sqrt[0.183(1-0.183)/130] = sqrt[0.183*0.817/130] = sqrt[0.149511/130] = sqrt[0.00114931] ≈ 0.0339.