5. Revealing information. 886 randomly sampled teens were
Chapter 22, Problem 5(choose chapter or problem)
5. Revealing information. 886 randomly sampled teens were asked which of several personal items of information they thought it okay to share with someone they had just met. 44% said it was okay to share their e-mail addresses, but only 29% said they would give out their cell phone numbers. A researcher claims that a two-proportion z-test could tell whether there was a real difference among all teens. Explain why that test would not be appropriate for these data.
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