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[单选题]

Use the following data to answer Questions 53 through 57.
　　Austin Roberts believes that the mean price of houses in the area is greater than $145,000. A random sample of 36 houses in the area has a mean price of $149,750. The population standard deviation is $24,000, and Roberts wants to conduct a hypothesis test at a 1% level of significance.Which of the following most accurately describes the appropriate test structure?

A.Two-tailed test.

B.One-tailed test.

C.Chi-square test.

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