A B2B Marketing Insider blog of October 7, 2010 examined five currently-used sales closing techniques. Sales scenarios are presented to a sample of 230 purchasing executives. Each subject received one of the five closing techniques or a scenario in which no sales close was achieved. After reading the sales scenario, each executive was asked to rate his/her level of trust in the salesperson on a 7-point scale. The following table reports the six treatments employed in the study and the number of subjects receiving each treatment: Treatments: Sales Closing Sample Size Technique No Close 35 Financial close 35 Time Line close 30 Sympathy close 40The Visual close 35 Thermometer close 55 (Source: Based on Hawes, J.M. "Do Closing Techniques Diminish Prospect Trust?" from Industrial Marketing Management, September 1996, Volume 25(5))Is the salesperson's level of trust influenced by the choice of closing method? Test at 5% significance level. Choose the correct Ho and HA statements: O A) Ho: P1 = P2 = P3 = P4 = P5 = P6 HA : At least two proportions are different ( B) Ho: M1 = 12 HA : H1 # H2 O C) HO : M1 = 12= M3 = H4= 15= 16 HA: At least two population means are different () D) Ho: M1 = M? = HQ = M4 = 15 = Uh