Your answer: 12.14 < mu1-mu2 < 22.76 11.46 mu1-mu2 < 23.45 15.96 mu1-mu2 < 18.95 10.47 mu1-mu2 < 24.43 14.31 < mu1-mu2 < 20.59 14.72 < mu1-mu2 < 20.19 9.77 mu1-mu2 < 25.14 9.93 mu1-mu2 < 24.97 10.47 mu1-mu2 < 24.43 13.58 mu1-mu2 < 21.32 0 Calculate the 99% confidence interval for the difference (mu1-mu2) of two population means given the following sampling results. Population 1: sample size = 18, sample mean = 26.20, sample standard deviation = 5.37. Population 2: sample size = 22, sample mean = 8.75, sample standard deviation = 2.49.