The research aims to determine whether there is an anxiety score difference between RNs working at a COVID- 19 unit and those working at non- COVID unit. Average anxiety score of RNs from COVID-19 unit = 15 (n= 456) H Average anxiety score of RNs from non-COVID-19 unit = 12 (n=427) Standard error of the difference between the 2 groups = 4.0 (Please refer to Appendix A: Critical Values for Student's t Distribution, p. 474) What is the t-test statistic? Are the anxiety scores significantly different at p < 0.05? OA.= -1.5, no OB. t = -0.75, yes OC.t= 1.5, yes OD.f = 0.75, no