A Random Sample of Size 15 Is Taken from a Population

question 109

Multiple Choice

A random sample of size 15 is taken from a population assumed to be normal,and = 1.2 and the sample variance is .36.Calculate a 99 percent confidence interval for μ.

• A)[.923,1.477]
• B)[.794,1.607]
• C)[.801,1.600]
• D)[.739,1.661]

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