Construct a 98% Confidence Interval for the Population Mean, μ

question 55

Multiple Choice

Construct a 98% confidence interval for the population mean, μ. Assume the population has a normaldistribution. A study of 14 car owners showed that their average repair bill was $192 with a standard deviationof $8. Round to the nearest cent.

• A) ($186.33, $197.67)
• B) ($222.33, $256.10)
• C) ($328.33, $386.99)
• D) ($115.40, $158.80)

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