A random sample n = 15 is taken from a population assumed to be normal, and = 1.2 and s = .6. Calculate a 98 percent confidence interval for μ.
A) [.675, 1.725]
B) [.794, 1.606]
C) [.876, 1.524]
D) [.882, 1.518]

Name: A random sample n = 15 is taken from a population assumed to be normal, and = 1.2 and s = .6. Calculate a 98 percent confidence interval for μ. A) [.675, 1.725] B) [.794, 1.606] C) [.876, 1.524] D) [.882, 1.518]
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Question

A random sample n = 15 is taken from a population assumed to be normal, and  = 1.2 and s = .6. Calculate a 98 percent confidence interval for μ.
A) [.675, 1.725] 
B) [.794, 1.606] 
C) [.876, 1.524] 
D) [.882, 1.518]

Quizplus · Accepted Answer

1.2 ± 2.624(.6/) = [.794, 1.606]

A Random Sample N = 15 Is Taken from a Population