gabrielamonreal2000 gabrielamonreal2000

26-12-2023
Mathematics

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A researcher wants to show that greater than 80% of the population has a cell phone. She samples 1000 individuals, and 830 of them have a cell phone. What is the value of the test statistic?
A) 4.49
B) 2.83
C) 6.32
D) 5.20

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