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The Practice of Statistics for AP*

Check that the conditions for carrying out a one-sample z test for the population proportion p are met.

Lefties Simon reads a newspaper report claiming that 12% of all adults in the United States are left-

handed. He wonders if 12% of the students at his large public high school are left-handed. Simon chooses an SRS of 100 students and records whether each student is right- or left-handed.