(See Solution) High Temperatures in the United States. A meteorologist claims that the average of the highest temperatures in the United States is 98^circ.


Question: High Temperatures in the United States. A meteorologist claims that the average of the highest temperatures in the United States is \(98^{\circ}\). A random sample of 50 cities is selected, and the highest temperatures are recorded. The data are shown. At \(\alpha=0.05\), can the claim be rejected? \(\sigma=7.71\)

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