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A Random Sample of Size 30 from a Normal Population

Question 45

Multiple Choice

A random sample of size 30 from a normal population yields = 32.8 with a population standard deviation of 4.51.Construct a 95 percent confidence interval for μ.


A) [23.96,41.64]
B) [32.04,33.56]
C) [31.45,34.15]
D) [31.19,34.41]

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