snowwhite1133 snowwhite1133 18-03-2024 Mathematics Answered Determine the upper-tail critical value tα/2 in each of the following circumstances.a. 1 - α = 0.95, n = 63.b. 1 - α = 0.99, n = 63.c. 1 - α = 0.95, n = 34.d. 1 - α = 0.95, n = 21.e. 1 - α = 0.90, n = 10.