Question

Find the left and right critical values used in the confidence interval for the ratio of the population variances given the following sample statistics. Round your answer to four decimal places. n1=15 , n2=19, s12=74.923, s22=44.864, 95% level of confidence

Answer 1

At 95% confidence interval the critical values are F(, n1 - 1, n2 - 1) = F(0.025, 14, 18) = 0.3473

                                                                               F(1 - , n1 - 1, n2 -1) = F(0.975, 14, 18) = 2.6964