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The mother of a teenager has heard a claim that 22% of teenagers who drive and use a cell phone reported texting while driving. She
The mother of a teenager has heard a claim that 22% of teenagers who drive and use a cell phone reported texting while driving. She thinks that this rate is too high and wants to test the hypothesis that fewer than 22% of these drivers have texted while driving. Her alternative hypothesis is that the percentage of teenagers who have texted when driving is less than 22%. Ho: p=0.22 Ha: p
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