Question: Calculate the 9 9 % confidence interval for the difference ( mu 1 - mu 2 ) of two population means given the following sampling

Calculate the 99% confidence interval for the difference (mu1-mu2) of two population means given the following sampling results. Population 1: sample size =9 sample mean =22.00, sample standard deviation =4.74. Population 2: sample size =11, sample mean =16.76, sample standard deviation =0.85.
Your answer:
0.61 mu11 mu 29.87
2.06 mu1-mu28.41
-2.21 mu1- mu 212.68
4.79 mu1- mu25.68
-1.09 mu1- mu 211.56
1.63 mu1- mu28.84
-0.13 mu1- mu 210.61
2.14 mu1- mu 28.34
1.69 mu1- mu28.78
0.57 mu1- mu 29.90
Calculate the 99% confidence interval for the difference (mu1-mu2) of two

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