Question

Exercise 11-3 Algo In order to construct a confidence interval for the population varian population. Use this information to find x2a/2, df and 21-a/2, ef under the following scenarios. places. You may find it useful to reference the appropriate table: s ce, a random sample of n observations is drawn from a normal Round your answers to 3 decimal hi-square table or Ftable) a/2 a. A 9ex confidence level with n 19 b. A 90% confidence level with n-48. C. A 95% confidence level with n-19. d. A 95% confidence level with n . 48. < Prev 20f 61ll Next > search up

Answer 1

from chi square table ; critical values are :

a)9.390 ; 28.869

b)32.268 ; 64.001

c)8.231 ; 31.526

d) 29.956 ; 67.821