Compute the critical value UB Forum › Category: Statistics › Compute the critical value 1 Vote Up Vote Down Debbie Harry Staff asked 5 years ago Compute the critical value Za/2 that corresponds to a 99% level of confidence. A) 1.96 B) 1.645 C) 2.575 D) 2.33 1 Answers 1 Vote Up Vote Down Best Answer Selena Tate Staff answered 5 years ago Compute the critical value Za/2 that corresponds to a 99% level of confidence. Solution: 2.575