#15 multiple choice asap please

n (critical values) (click on the link) Formulas (click on the link) Question 15 (1 point) Suppose X1,...,Xn is a sample of successes and failures from a Bernoulli population with probability of success p. Let Ex=294 with n=400. Then a 75% confidence interval for p is: Please choose the best answer. O a ) . 735 +. 0390 Ob) . 735 +.037 O c) . 735+.0323 O d) . 735 + . 0254 O e) . 735 + . 044