Question

Calculate the 99% confidence interval for the difference (mu1-mu2) of two population means given the following sampling results. Population 1: sample size = 12, sample mean = 20.36, sample standard deviation = 0.57. Population 2: sample size = 7, sample mean = 16.32, sample standard deviation = 0.85.

Your answer:
	2.87 < mu1-mu2 < 5.22
	3.86 < mu1-mu2 < 4.22
	3.42 < mu1-mu2 < 4.67
	2.61 < mu1-mu2 < 5.47
	3.17 < mu1-mu2 < 4.91
	3.39 < mu1-mu2 < 4.70
	2.15 < mu1-mu2 < 5.93
	3.48 < mu1-mu2 < 4.61
	1.93 < mu1-mu2 < 6.15
	3.01 < mu1-mu2 < 5.08

Answer 1

Option: 2.87 < mu1-mu2 < 5.22

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