Two sample independent t-tests Queries to a call centre about an airline's frequent flyer accounts are logged and the time taken to answer each query recorded. The data represent the time (in minutes) to answer samples of 20 queries made Call Centre One and 20 queries made Call Centre Two. Complete parts (a) to (c) below. Click here to view the sample times. a. Assuming that the population variances for both teams are equal, is there evidence of a difference in the mean query time to answer the queries between Call Centre One and Two? (Use a = 0.05.) Let My be the mean query answer time of Call Centre One and J2 be the mean query answer time of Call Centre Two. Determine the hypotheses. Choose the correct answer below. O A. HO: H1 = H2 OB. HO: HI SH2 H1: My # H2 H1 : H1 > H2 O C. HO: M1 2 H2 OD. HO: My # H2 H1: My