Question: Refer to Exercise 1 in Section 5.2. Can it be concluded that less than half of the automobiles in the state have pollution levels that

Refer to Exercise 1 in Section 5.2. Can it be concluded that less than half of the automobiles in the state have pollution levels that exceed the standard?

Refer to Exercise 1

In a simple random sample of 70 automobiles registered in a certain state, 28 of them were found to have emission levels that exceed a state standard.

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