To construct a confidence interval using the given confidence level, do whichever of the following is appropriate. (a) Find the critical value za /2. (b) find the critical value ta/2, or (c) state...

Extracted text: To construct a confidence interval using the given confidence level, do whichever of the following is appropriate. (a) Find the critical value za /2. (b) find the critical value ta/2, or (c) state that neither the normal nor the t distribution applies. 99%; n= 200; o is unknown; population appears to be skewed Click here to view a table of critical t-values. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. O A. ta/2 = 1.653 i t-table O B. za/2 = 1.645 t distribution: Critical t values OC. ta/2 = 2.601 Area in One Tail 0.025 0.005 0.01 0.05 0.10 O D. za/2 = 2.575 Degrees of Area in Two Tails Freedom 0.01 0.02 0.05 0.10 0.20 O E. Neither the normal nor the t distribution applies. 63.657 31.821 12.706 6.314 3.078 9.925 5.841 4.604 6.965 4.303 2.920 1.886 Click to select your answer. 3.182 2.776 4.541 2.353 1.638 3.747 2.132 1.533 4.032 3.707 3.365 2.571 2.015 1.476 Save for Later 6. 3.143 2.447 1.943 1.440 3.499 2.998 2.365 1.895 1.415