Assume that matched pairs of data from a poll of Internet users who were asked if they make travel plans through the Internet result in 338 positive signs, 314 negative signs, and 20 ties when the value of the second variable is subtracted from the corresponding value of the first variable. Use the sign test with a 0.05 significance level to test the null hypothesis of no difference. Let n, denote the median of the first variable and n2 denote the median of the second variable. What are the null and alternative hypotheses? O B. Ho: 1 2 2 O A. Ho: 1 = 2 Hy : 11 <2>