Suppose that a sample of 100 independent draws from a normal distribution having unknown mean μ and known variance σ2 = 1 is observed. If the sample mean is 5, then the 95% confidence interval for μ is:
1
(4.84, 6.196)
2
(4.804, 5.196)
3
(4.23, 5.19)
4
(4.804, 6.196)