To what extent are sales people more extroverted than the general population? To help find out, Alice collects a convenience sample of 25 sales people. Each completes a scale of extroversion (from 1-7) with the following national norms: p = 3.79, o = 1.55. Alice decides to use the NHST approach with the null hypothesis of no difference from the national norm (Ho: Isalespeople = 3.79). Given a = .05, which of these would be a statistically significant finding? OA. p =.5 OB. p = .06 O C. The sample mean is 5.5, 95% CI [3, 7] O D. The sample mean is 3.9, 95% CI [3.8, 4.0]