Choose the One Alternative That Best Completes the Statement or Answers

question 79

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-In a random sample of 60 laptop computers, the mean repair cost was $\$ 150$ with a population standard deviation of $\$ 36$ . Compute the $99 \%$ confidence interval for $\mu$ .

• A) \(( \$ 138 , \$ 162 )\)
• B) \(( \$ 18 , \$ 54 )\)
• C) \(( \$ 238 , \$ 274 )\)
• D) \(( \$ 537 , \$ 654 )\)

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